{"title":"Lumogarnets","description":"Lumogarnets are hyper-fluorescent lab garnets. Their strong glow - highly visible in daylight and indirect sunlight- gives lumogarnets a unique look that can't be found in any other gems.","products":[{"product_id":"faceted-luag-fancy-singles-calibrated-rounds-squares-and-trillions-lutetium-aluminum-garnet","title":"LuAG Lumogarnet Faceted Loose Gems","description":"\u003cp\u003eThese are faceted labmade LuAG (Lutetium Aluminum Garnet). We have calibrated rounds, squares and trillions, as well as individual fancy cut stones.  Each fancy cut stone has its own individual photo and they can be purchased individually. The variation dropdown shows the carat weight and measurements of each stone, with the individual fancy cuts at the bottom below the calibrated cuts.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eLuAG is an exotic lab-created crystal with the same structure as natural garnets, but a composition and properties which are impossible in nature, particularly its outrageously strong green fluorescence which makes it glow when exposed to sunlight and even some indoor light. This is what we call a 'lumogarnet' - a lab created garnet with incredible fluorescence, designed to help detect invisible radiation. This is one of my favorite synthetic materials--brilliant and hard enough for use in all jewelry (mohs 8.5!).\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe fluorescence really is crazy--even normal room lights will make a LuAG gem fluoresce, and outdoors with indirect sunlight can make it look like it is photoshopped into real life. A blacklight aimed directly at it makes it insanely bright. It is just a great material overall, perfect for the collector and jeweler alike.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"2mm Round (avg. 0.05ct)","offer_id":47104922583328,"sku":"Gem_LuAG_Round_2","price":8.0,"currency_code":"USD","in_stock":false},{"title":"2.5 mm Round (avg. 0.15ct)","offer_id":51752610890016,"sku":"Gem_LuAG_Round_2.5","price":11.0,"currency_code":"USD","in_stock":false},{"title":"3mm Round (avg. 0.25ct)","offer_id":48447599149344,"sku":"Gem_LuAG_Round_3","price":16.0,"currency_code":"USD","in_stock":false},{"title":"4mm Round (avg. 0.5ct)","offer_id":45740098224416,"sku":"Gem_LuAG_Round_4","price":22.0,"currency_code":"USD","in_stock":true},{"title":"5mm Round (avg. 1.1ct)","offer_id":45740098257184,"sku":"Gem_LuAG_Round_5","price":44.0,"currency_code":"USD","in_stock":true},{"title":"6mm Round (avg. 1.8ct)","offer_id":45740098289952,"sku":"Gem_LuAG_Round_6","price":72.0,"currency_code":"USD","in_stock":true},{"title":"7mm Round (avg. 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It is what we call a 'lumogarnet' - a synthetic garnet with incredible fluorescence. It glows a bright yellow, slightly greener and brighter than already-bright Ce:YAG. This material is like an upgraded version of the classic GGG crossed with an aluminum garnet (like YAG and LuAG) to give it excellent hardness (8) while maintaining a high RI (1.9) and generally excellent gem properties. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis material also glows in the dark, though the amount varies from piece to piece.  They try hard to make sure it won't have any afterglow but mistakes do get made sometimes and these gems are the ones that didn't make the cut for whatever reason.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Smaller Complete GAGG Pixel (20x4.3mm avg 12ct)","offer_id":46001346642208,"sku":"Pixel_GAGG_Small","price":50.0,"currency_code":"USD","in_stock":true},{"title":"Larger Complete GAGG Pixel (27x5x3mm avg 14.5ct)","offer_id":48563359482144,"sku":"Pixel_GAGG_Whole","price":50.0,"currency_code":"USD","in_stock":true},{"title":"Faceted Larger GAGG Pixel (approx 27mm x 5 mm, avg 7.4ct)","offer_id":46002284331296,"sku":"Pixel_GAGG_Faceted","price":150.0,"currency_code":"USD","in_stock":true},{"title":"Faceted GAGG Pixel with inclusions (19-20mm long avg 6ct)","offer_id":46002284364064,"sku":"Faceted_GAGG_Pixel","price":90.0,"currency_code":"USD","in_stock":false},{"title":"Damaged Larger GAGG Pixel (has cracks and or chips)","offer_id":48563359514912,"sku":"Pixel_GAGG_Damaged","price":35.0,"currency_code":"USD","in_stock":false},{"title":"Incomplete Larger GAGG Pixel (fragment of a complete pixel)","offer_id":48563359547680,"sku":"Pixel_GAGG_Fragment","price":25.0,"currency_code":"USD","in_stock":false},{"title":"Damaged Smaller Complete GAGG Pixel","offer_id":49984311001376,"sku":"Pixel_GAGG_Small_Chipped","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/IMG_0049_2e1a66f9-b051-461e-a8dd-8c9763d9998f.jpg?v=1716495745"},{"product_id":"gagg-lumogarnet-facet-rough-neon-yellow","title":"GAGG Lumogarnet Facet Rough Neon Yellow (Day Glow Fluorescence, Slight Phosphorescence)","description":"\u003cp\u003eThese are lab-created GAGG (Gadolinium Aluminum Gallium Garnet) crystal facet rough. 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This means that it shows a mixture of red and green flashes, and which color predominates depends on the lighting (color and angle) as well as the background it is set against. Lighter toned stones will look almost pure green when placed on a white background but change to a mix of red and green when put on a dark background. Note that the camera exaggerates the red at the expense of the green--they do look better in person. They look a bit like alexandrite or color change garnet but is also totally different and unique. This is easily one of my favorite gems, unlike anything else found in nature or any other synthetic.\u003cbr\u003e\u003cbr\u003eCr:YAG is used in lasers as a 'q switch', which means it is opaque until it absorbs a critical amount of radiation and then suddenly becomes transparent. 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are lab-created GAGG (Gadolinium Aluminum Gallium Garnet) facet rough with pronounced phosphorescence (glow in the dark). Each piece is marked with its weight and you select which one to purchase.\u003c\/p\u003e\n\u003cp\u003eNote that, as a particularly defective crystal, some of these pieces will have a few bubbles.  The bubbles tend to correlate with the highest afterglow.\u003c\/p\u003e\n\u003cp\u003eThis is \"Long glow\" or \"high glow\" GAGG--a type of defective GAGG which exhibits a glow-in-the-dark effect.  They work pretty hard to avoid this happening since it makes the crystal useless for its intended purpose (detecting invisible radiation).  However mistakes happen and sometimes a crystal does show this effect.  Each one is a little different because the causes can vary, but this crystal shows a bright but short-lived initial glow which fades to a dimmer but long-lasting glow.  It was visible after at least an hour of sitting on my bedside table in the dark.\u003cbr\u003e\u003cbr\u003eCerium GAGG is brand new as far as gems go--it only entered industrial usage in 2014, and we just introduced it to the gem market last year. 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This material has very bright fluorescence, and like Ce:YAG and LuAG it is used as a scintillator to help detect invisible radiation.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"1pc under 1g (shard)","offer_id":50699619107104,"sku":"Rgh_GAGG_Hi_Shard","price":10.0,"currency_code":"USD","in_stock":false},{"title":"1pc under 1g (crumb)","offer_id":47043631448352,"sku":"Rgh_GAGG_Hi_Crumb","price":15.0,"currency_code":"USD","in_stock":false},{"title":"1pc 1-1.5g","offer_id":50699616059680,"sku":"Rgh_GAGG_Hi_1g","price":50.0,"currency_code":"USD","in_stock":false},{"title":"1pc 1.5-2g","offer_id":50699616092448,"sku":"Rgh_GAGG_Hi_1.5g","price":70.0,"currency_code":"USD","in_stock":false},{"title":"1pc 2-2.5g","offer_id":50699616125216,"sku":"Rgh_GAGG_Hi_2g","price":90.0,"currency_code":"USD","in_stock":true},{"title":"1pc 2.5-3g","offer_id":50699616157984,"sku":"Rgh_GAGG_Hi_2.5g","price":110.0,"currency_code":"USD","in_stock":true},{"title":"1pc 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We have both calibrated stones (purchas\u003c\/span\u003e\u003cspan\u003eed by size) and unique stones.  Each unique stone is labelled with its carat weight and measurements in the photo and they can be purchased individually.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eCr:YAG, aka 'Christmas garnet' is an exotic lab-created garnet and a really unique gem even by our standards. It has a totally unique color, with a rich almost tsavorite green base and strong red fluorescence. This means that it shows a mixture of red and green flashes, and which color predominates depends on the lighting (color and angle) as well as the background it is set against. Lighter toned stones will look almost pure green when placed on a white background but change to a mix of red and green when put on a dark background. Note that the camera exaggerates the red at the expense of the green--they do look better in person. They look a bit like alexandrite or color change garnet but is also totally different and unique. This is easily one of my favorite gems, unlike anything else found in nature or any other synthetic.\u003cbr\u003e\u003cbr\u003eCr:YAG is used in lasers as a 'q switch', which means it is opaque until it absorbs a critical amount of radiation and then suddenly becomes transparent. This allows a laser to charge its crystal up to a higher energy level before suddenly releasing it all in a single powerful\u003cspan\u003e \u003c\/span\u003eburst instead of shooting out in a continuous beam. Pulsed lasers can be extremely powerful and are incredibly useful for all sorts of applications, from tattoo removal to cutting edge physics research. Basically, like all bad sci-fi and good RPGs you can upgrade your laser just by slapping a crystal on the end.\u003cbr\u003e\u003cbr\u003eLike all YAG this material is ideal for jewelry with a high hardness of 8.5, no durability issues and good optical properties which make it sparkle brilliantly.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Round, 2mm, ~0.05ct","offer_id":52316495872288,"sku":"Gem_Xmas_Round_2","price":7.0,"currency_code":"USD","in_stock":false},{"title":"Round, 3mm, ~0.17ct","offer_id":52316495905056,"sku":"Gem_Xmas_Round_3","price":12.0,"currency_code":"USD","in_stock":false},{"title":"Round, 4mm, ~0.39ct","offer_id":52316495937824,"sku":"Gem_Xmas_Round_4","price":21.0,"currency_code":"USD","in_stock":false},{"title":"Round, 5mm, ~0.7ct","offer_id":52316495970592,"sku":"Gem_Xmas_Round_5","price":33.0,"currency_code":"USD","in_stock":false},{"title":"Round, 6mm, 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~3.4ct","offer_id":52315330314528,"sku":"Gem_Xmas_PXL9x6","price":128.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut H, ~9x7mm, ~4.2ct","offer_id":52315330347296,"sku":"Gem_Xmas_PXL9x7","price":154.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut I, ~10x6mm, ~3.8ct","offer_id":52315330380064,"sku":"Gem_Xmas_PXL10x6","price":141.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut J, ~10x7mm, ~3.9ct","offer_id":52315330412832,"sku":"Gem_Xmas_PXL10x7","price":144.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut K, ~10x8mm, ~5.4ct","offer_id":52315330445600,"sku":"Gem_Xmas_PXL10x8","price":192.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut L, ~13x9mm, ~9.7ct","offer_id":52315330478368,"sku":"Gem_Xmas_PXL13x9","price":308.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut M, 6.9×6.4mm, 2.2ct","offer_id":52316549021984,"sku":"Gem_Xmas_00120260907","price":88.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut N, 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7ct","offer_id":52316549251360,"sku":"Gem_Xmas_00820260907","price":229.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut U, 11.2×9.9mm, 9.3ct","offer_id":52316549284128,"sku":"Gem_Xmas_00920260907","price":303.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut V, 11.7×6.4mm, 4ct","offer_id":52316549316896,"sku":"Gem_Xmas_01020260907","price":141.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut W, 11.7×7.6mm, 6.3ct","offer_id":52316549349664,"sku":"Gem_Xmas_01120260907","price":207.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut X, 13.3×5.8mm, 4.1ct","offer_id":52316549382432,"sku":"Gem_Xmas_01220260907","price":144.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut Y, 12.9×6.7mm, 5.3ct","offer_id":52316549415200,"sku":"Gem_Xmas_01320260907","price":175.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Cut Z, 12.7×7.7mm, 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9.1ct","offer_id":52316549841184,"sku":"Gem_Xmas_02420260907","price":296.0,"currency_code":"USD","in_stock":true},{"title":"Dragon Eye, 7.6mm, 2.9ct","offer_id":52316549873952,"sku":"Gem_Xmas_02520260907","price":110.0,"currency_code":"USD","in_stock":false},{"title":"Octagon Cut A, 9.6mm, 5.2ct","offer_id":52316549906720,"sku":"Gem_Xmas_02620260907","price":171.0,"currency_code":"USD","in_stock":true},{"title":"Octagon Cut B, 10.1mm, 5.9ct","offer_id":52316549939488,"sku":"Gem_Xmas_02720260907","price":194.0,"currency_code":"USD","in_stock":true},{"title":"Checkerboard Pear A, 13.4×11.6mm, 7.7ct","offer_id":52316549972256,"sku":"Gem_Xmas_02820260907","price":251.0,"currency_code":"USD","in_stock":true},{"title":"Checkerboard Pear B, 11.9×10mm, 3.9ct","offer_id":52316550005024,"sku":"Gem_Xmas_02920260907","price":138.0,"currency_code":"USD","in_stock":false},{"title":"Checkerboard Pear C, 14.1×12mm, 8.3ct","offer_id":52316550037792,"sku":"Gem_Xmas_03020260907","price":271.0,"currency_code":"USD","in_stock":true},{"title":"Checkerboard Pear D, 14.6×12mm, 8.7ct","offer_id":52316550070560,"sku":"Gem_Xmas_03120260907","price":283.0,"currency_code":"USD","in_stock":true},{"title":"Complex Rectangle, 13.3×10.6mm, 9.7ct","offer_id":52316550103328,"sku":"Gem_Xmas_03220260907","price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/IMG_0028_d2bdb78e-d279-4bb2-8d05-84557cc2e58c.jpg?v=1754019898"},{"product_id":"christmas-garnet-facet-rough-laser-cr-yag-red-and-green","title":"Christmas Garnet Facet Rough, Cr YAG","description":"\u003cp\u003eThese are lab created chromium YAG (Yttrium Aluminum Garnet) facet rough aka \"Christmas Garnet\".  Each can be purchased by their weight range.  We also offer flat q switch blanks which didn't quite make it into lasers--they are a bit flat but can be split in two or cut into more unique designs.\u003cbr\u003e\u003cbr\u003eChristmas garnet is one of our top materials.  This type of YAG has had chromium added to the mix, the same element that gives green color to emeralds and red base color and fluorescence to ruby. Christmas garnet gets one of each: the rich green base of an emerald and the strong red fluorescence of a ruby. Depending in the light source, angle and path length you might see the green base color or the red fluorescence at any given point in the stone. The camera overstates the red vs the eye and struggles to capture the green, and in the hand the stone is even cooler than the photos can show. Faceted stones have flashes of green and red and change colors based on lighting and background color. We call them \"christmas garnets\" because of their unique blend of red and green.\u003c\/p\u003e\n\u003cp\u003eThis is one of our most popular materials and cuts amazing gems. Even normal undoped YAG is an amazing material - not only is it easy to cut, but it also has a high hardness (8.25-8.5), a solid RI (1.83), and good dispersion.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"1pc Under 1g (crumb)","offer_id":49968830382368,"sku":"Rough_Xmas_Crumb","price":22.0,"currency_code":"USD","in_stock":true},{"title":"1pc Flat Q Switch Plate (av 1.2 g)","offer_id":49968830415136,"sku":"Rough_Xmas_Plate","price":14.0,"currency_code":"USD","in_stock":true},{"title":"1pc 1-2g","offer_id":47693190070560,"sku":"Rough_Xmas_1","price":22.0,"currency_code":"USD","in_stock":true},{"title":"1pc 2-3g","offer_id":47066853048608,"sku":"Rough_Xmas_2","price":37.0,"currency_code":"USD","in_stock":true},{"title":"1pc 3-4g","offer_id":48023487938848,"sku":"Rough_Xmas_3","price":52.0,"currency_code":"USD","in_stock":true},{"title":"1pc 4-5g","offer_id":48023487971616,"sku":"Rough_Xmas_4","price":67.0,"currency_code":"USD","in_stock":true},{"title":"1pc 5-6g","offer_id":48023488004384,"sku":"Rough_Xmas_5","price":82.0,"currency_code":"USD","in_stock":true},{"title":"1pc 6-7g","offer_id":48023488069920,"sku":"Rough_Xmas_6","price":97.0,"currency_code":"USD","in_stock":true},{"title":"1pc 7-8g","offer_id":48023488102688,"sku":"Rough_Xmas_7","price":112.0,"currency_code":"USD","in_stock":true},{"title":"1pc 8-9g","offer_id":48023488135456,"sku":"Rough_Xmas_8","price":127.0,"currency_code":"USD","in_stock":true},{"title":"1pc 9-10g","offer_id":48023488168224,"sku":"Rough_Xmas_9","price":142.0,"currency_code":"USD","in_stock":true},{"title":"1pc 10-11g","offer_id":49968829661472,"sku":"Rough_Xmas_10","price":157.0,"currency_code":"USD","in_stock":false},{"title":"1pc 11-12g","offer_id":49968829694240,"sku":"Rough_Xmas_11","price":172.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/roughdual.jpg?v=1741565907"},{"product_id":"lyso-faceted-loose-gems-blue-fluorescent-scintillator","title":"LYSO Faceted Loose Gems Blue Fluorescent Scintillator","description":"\u003cp\u003eThese are loose calibrated faceted stones of LYSO (Lutetium Yttrium Oxyorthosilicate).  All show bright blue fluorescence strong enough to give them a full color change to light blue in direct sunlight.  Some also have a mild afterglow, showing a blue glow after exposure to UV which can be seen in cupped hands. Note that LYSO reacts much more strongly to 365 nm UV, and 395nm will be much less effective.\u003c\/p\u003e\n\u003cp\u003eSome of these are bubbly - we have labeled the ones that had very noticeable bubbles but it's possible a few will slip through in the others.  The especially bubbly LYSOs tend to be tenebrescent - they gain a yellow hue when exposed to UV and slowly fade back to white over time.\u003cbr\u003e\u003cbr\u003eLYSO is a very unusual crystal grown for use in science and industry.  It has a clear base and very strong blue fluorescence. It glows incredibly bright under UV light as well as higher energy radiation, and because of this it can be used to detect invisible gamma rays, xrays and even alpha rays. This type of LYSO has been optimized for ultra strong fluorescence with no afterglow (it does not glow in the dark, only with UV exposure). Its fluorescence is so strong it has a striking blue glow in sunlight--this effectively gives it a color change effect, since it looks colorless under room lighting and light purple-blue outdoors. It has a very interesting and unique look which you can't find anywhere else.\u003cbr\u003e\u003cbr\u003eAsianometry on youtube recently made a cool video about this material which you can watch here https:\/\/www.youtube.com\/watch?v=XpYYGiUX0x0\u003cbr\u003e\u003cbr\u003eLYSO is not very hard at around 5.8, just under tanzanite, and as such is not a good choice for a ring, though it would be great in a pendant or earrings.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"No Afterglow \/ 2mm Round (avg. 0.08ct)","offer_id":47216646717728,"sku":"Gem_LYSO_Rnd_2","price":5.0,"currency_code":"USD","in_stock":false},{"title":"No Afterglow \/ 2.5mm Round (avg. 0.14ct)","offer_id":51543727407392,"sku":"Gem_LYSO_Rnd_2.5","price":5.0,"currency_code":"USD","in_stock":true},{"title":"No Afterglow \/ 3mm Round (avg 0.2ct)","offer_id":47105002406176,"sku":"Gem_LYSO_Rnd_3","price":10.0,"currency_code":"USD","in_stock":true},{"title":"No Afterglow \/ Bubbly Round, 3mm, avg 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The variation dropdown shows the carat weight and measurements of each stone.\u003c\/p\u003e\n\u003cp\u003eThis is an ultra-bright variant of LuAG grown by one of the world's leading photonics companies. While conventional material is merely ridiculously bright this material upgrades it to 'bonkers' levels with an even brighter glow.  The color is also just a bit yellower than the normal luag.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eLuAG is an exotic lab-created crystal with the same structure as natural garnets, but a composition and properties which are impossible in nature, particularly its outrageously strong green fluorescence which makes it glow when exposed to sunlight and even some indoor light. This is what we call a 'lumogarnet' - a lab created garnet with incredible fluorescence, designed to help detect invisible radiation. This is one of my favorite synthetic materials--brilliant and hard enough for use in all jewelry (mohs 8.5!).\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe fluorescence really is crazy--even normal room lights will make a LuAG gem fluoresce, and outdoors with indirect sunlight can make it look like it is photoshopped into real life. A blacklight aimed directly at it makes it insanely bright. 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This material is like an upgraded version of the classic GAGG crossed with an aluminum garnet (like YAG and LuAG) to give it excellent hardness (8) while maintaining a high RI (1.9) and generally excellent gem properties. It is what we call a 'lumogarnet' - a synthetic garnet with incredible fluorescence. It glows a bright green-yellow, brighter than the already-ridiculously-bright Ce:YAG. Like Ce:YAG and LuAG it is used as a scintillator to help detect invisible radiation.\u003cbr\u003e\u003cbr\u003eThese stones have a very bright green-yellow fluorescence which gives them a super bright and almost uncanny glow in some lighting. A few of these stones also glow in the dark to some extent, though not as much as our high glow GAGG does. 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Trillion, 7.5mm, 2.54ct","offer_id":51529579921696,"sku":"Gem_GAGG_19220260422","price":89.0,"currency_code":"USD","in_stock":true},{"title":"Rounded Trillion, 7.8mm, 2.75ct","offer_id":51529579954464,"sku":"Gem_GAGG_19320260422","price":95.0,"currency_code":"USD","in_stock":true},{"title":"Trillion, 7.4mm, 3.2ct","offer_id":51529579987232,"sku":"Gem_GAGG_19420260422","price":108.0,"currency_code":"USD","in_stock":true},{"title":"Rounded Trillion, 7.3mm, 3.25ct","offer_id":51529580020000,"sku":"Gem_GAGG_19520260422","price":110.0,"currency_code":"USD","in_stock":true},{"title":"Trillion, 7.7mm, 3.87ct","offer_id":51529580052768,"sku":"Gem_GAGG_19620260422","price":127.0,"currency_code":"USD","in_stock":true},{"title":"Rounded Trillion, 7.6mm, 3.94ct","offer_id":51529580085536,"sku":"Gem_GAGG_19720260422","price":128.0,"currency_code":"USD","in_stock":true},{"title":"Trillion, 8.4mm, 4.01ct","offer_id":51529580118304,"sku":"Gem_GAGG_19820260422","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/GAGG_frontPhoto.jpg?v=1774502204"},{"product_id":"luag-jewelry-earrings-and-pendants","title":"LuAG Jewelry, Earrings Rings and Pendants","description":"\u003cp\u003eThese are earrings and pendants made from lab-created hyperfluorescent LuAG lumogarnets. They are set in solid sterling silver.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eLuAG (Lutetium Aluminum Garnet) is a hyperfluorescent lab-created garnet which is used in science and medicine as a 'scintillator', a material whose fluorescence is so strong it can be used in detecting invisible radiation like x-rays and gamma rays. The way this is done is by cutting the garnet into square 'pixels', each of which is put in front of a sensor. When a gamma ray or x-ray hits one of the pixels they fluoresce and the sensor can detect the light, much like in a digital camera.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThese stones don't just glow, they reach out and grab the eye when exposed to sunlight, diffuse skylight and even indoor lighting. They make incredible jewelry which is guaranteed to make a statement. These should be a great gift for any science-loving relative, fashionable radiologist, significant other, cyberpunk friend or of course for yourself. \u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePlus, since we saved these crystals from the waste stream, this is a rare example of an upcycled gemstone.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eLuAG is more durable than natural garnets with a hardness of 8.5. Even normal room lights will make it fluoresce, and outdoors with indirect sunlight can make it look like it is photoshopped into real life. It is just a great gem.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"LuAG Pendant, 8mm, ~4.7ct","offer_id":52181587788064,"sku":"Pend_LuAG_Rnd8","price":293.0,"currency_code":"USD","in_stock":true},{"title":"Obelisk Pendant, 6-Sided, 20x8mm","offer_id":51383083270432,"sku":"Luag_OBL6","price":570.0,"currency_code":"USD","in_stock":true},{"title":"LuAG Stud Earrings, 6mm, ~3.8tctw","offer_id":52181444690208,"sku":"Stud_LuAG_Rnd6","price":257.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/Pendant_Luag_8rnd.jpg?v=1786595407"},{"product_id":"space-laser-garnet-loose-gems-fancy-cut-mars-rover-crystal","title":"Space Laser Garnet Loose Gems, Fancy Cut Mars Rover Crystal","description":"\u003cp\u003eThese are lab created 'Space Laser' garnet in mixed fancy cuts, or more technically speaking chromium + neodymium YAG (Yttrium Aluminum Garnet). Each is individually photographed.\u003cbr\u003e\u003cbr\u003eThis is a really cool one, dual-doped neodymium+chromium YAG. Nd:YAG is the most classic laser crystal, and adding chromium gives it two benefits in space.  First, chromium radiation hardens the crystal, allowing it to function in the unforgiving environment outside our atmosphere.  Adding chromium also allows the creation of self-switched pulsed lasers which are hard to grow but save weight and have fewer points of failure, making them great for use in very demanding applications.\u003c\/p\u003e\n\u003cp\u003eAnd did I mention these go into space! They are grown by a top US photonics company and a laser built around one of these will be on the 2028 Mars rover(!!!) in addition to their routine use on satellites. In theory a laser crystal cut from one of these very same crystals could be on mars in a few years! The material we got is from the very tops of the crystals which tends to concentrate any chemical or structural imperfections and as such can't be used, but the main bodies of these crystals have no doubt made it into functioning lasers.\u003cbr\u003e\u003cbr\u003eFrom a gem perspective it is also amazing material. It looks similar to our classic christmas garnet, with a rich green base and strong red fluorescence, but with an even richer and slightly bluer green base. It also has odd pale yellow fluorescence under short wave unlike classic christmas garnet which is red in short and long wave, so it is easy to distinguish from the more common chromium YAG. We have a limited amount of this material and it's one of the best things we've ever gotten.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Round, 3mm, 0.15ct","offer_id":51675727724832,"sku":"Gem_SpaceLaser_Rnd3","price":15.0,"currency_code":"USD","in_stock":false},{"title":"Round, 4mm, 0.35ct","offer_id":51675727757600,"sku":"Gem_SpaceLaser_Rnd4","price":28.0,"currency_code":"USD","in_stock":true},{"title":"Round, 5mm, 0.7ct","offer_id":51675727790368,"sku":"Gem_SpaceLaser_Rnd5","price":51.0,"currency_code":"USD","in_stock":true},{"title":"Round, 6mm, 1.2ct","offer_id":51675727823136,"sku":"Gem_SpaceLaser_Rnd6","price":83.0,"currency_code":"USD","in_stock":true},{"title":"Round, 7mm, 2ct","offer_id":51675727855904,"sku":"Gem_SpaceLaser_Rnd7","price":133.0,"currency_code":"USD","in_stock":true},{"title":"Round, 8mm, 3.1ct","offer_id":51675727888672,"sku":"Gem_SpaceLaser_Rnd8","price":198.0,"currency_code":"USD","in_stock":true},{"title":"Cushion, 3mm, 0.2ct","offer_id":51675727921440,"sku":"Gem_SpaceLaser_Cush3","price":18.0,"currency_code":"USD","in_stock":false},{"title":"Cushion, 4mm, 0.5ct","offer_id":51675727954208,"sku":"Gem_SpaceLaser_Cush4","price":38.0,"currency_code":"USD","in_stock":false},{"title":"Cushion, 5mm, 1ct","offer_id":51675727986976,"sku":"Gem_SpaceLaser_Cush5","price":70.0,"currency_code":"USD","in_stock":true},{"title":"Cushion, 6mm, 1.6ct","offer_id":51675728019744,"sku":"Gem_SpaceLaser_Cush6","price":108.0,"currency_code":"USD","in_stock":true},{"title":"Cushion, 7mm, 2.6ct","offer_id":51675728052512,"sku":"Gem_SpaceLaser_Cush7","price":169.0,"currency_code":"USD","in_stock":true},{"title":"Cushion, 8mm, 3.5ct","offer_id":51675728085280,"sku":"Gem_SpaceLaser_Cush8","price":222.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/IMG_0030_77bc1eb9-daab-46d4-8fee-d97d8bbc6a2d.jpg?v=1730430231"},{"product_id":"fantasy-cut-gagg-lumogarnet-with-bubbles-loose-faceted-stones","title":"Fantasy cut GAGG Lumogarnet with Bubbles Loose Faceted Stones","description":"\u003cp\u003eThese are fantasy cut GAGG lumogarnets with bubbles.  Some are more included than others, and some have a decent afterglow.  Each is pictured individually.\u003c\/p\u003e\n\u003cp\u003eCerium GAGG is a material which has recently risen to prominence in industry but never been used as a gem until now. It is what we call a 'lumogarnet' - a lab created garnet with incredible fluorescence. It glows a bright yellow, slightly greener and brighter than already-bright Ce:YAG. This material is like an upgraded version of the classic GGG crossed with an aluminum garnet (like YAG and LuAG) to give it excellent hardness (8) while maintaining a high RI (1.9) and generally excellent gem properties. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSome of these glow in the dark! Growers work very hard to make sure GAGG does not glow in the dark since it lowers the temporal resolution of the system (you want to know where an x-ray is now, not where it was an hour ago!) but sometimes they make mistakes, and a small subset have a stronger glow.  In particular these bubbly stones have a higher rate since they're already messed up in another way.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"12.9ct","offer_id":50022969311520,"sku":"Fantasy_GAGG_001","price":193.0,"currency_code":"USD","in_stock":true},{"title":"13.1ct","offer_id":50022969344288,"sku":"Fantasy_GAGG_002","price":196.0,"currency_code":"USD","in_stock":true},{"title":"14.5ct With Afterglow","offer_id":50022969409824,"sku":"Fantasy_GAGG_003","price":217.0,"currency_code":"USD","in_stock":false},{"title":"15.7ct","offer_id":50022969442592,"sku":"Fantasy_GAGG_004","price":235.0,"currency_code":"USD","in_stock":true},{"title":"16.7ct With Afterglow","offer_id":50022969475360,"sku":"Fantasy_GAGG_005","price":250.0,"currency_code":"USD","in_stock":true},{"title":"18.5ct With Afterglow","offer_id":50022969508128,"sku":"Fantasy_GAGG_006","price":277.0,"currency_code":"USD","in_stock":true},{"title":"21.7ct","offer_id":50022969540896,"sku":"Fantasy_GAGG_007","price":325.0,"currency_code":"USD","in_stock":true},{"title":"23.9ct","offer_id":50022969573664,"sku":"Fantasy_GAGG_008","price":358.0,"currency_code":"USD","in_stock":true},{"title":"24ct","offer_id":50022969606432,"sku":"Fantasy_GAGG_009","price":250.0,"currency_code":"USD","in_stock":true},{"title":"25ct With Afterglow","offer_id":50022969639200,"sku":"Fantasy_GAGG_010","price":475.0,"currency_code":"USD","in_stock":true},{"title":"27.8ct With Afterglow","offer_id":50022969671968,"sku":"Fantasy_GAGG_011","price":450.0,"currency_code":"USD","in_stock":false},{"title":"29.8ct With Afterglow","offer_id":50022969737504,"sku":"Fantasy_GAGG_012","price":330.0,"currency_code":"USD","in_stock":false},{"title":"33.3ct","offer_id":50022969770272,"sku":"Fantasy_GAGG_013","price":499.0,"currency_code":"USD","in_stock":true},{"title":"33.8ct","offer_id":50022969803040,"sku":"Fantasy_GAGG_014","price":507.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/IMG_0009crop.jpg?v=1742924968"},{"product_id":"fantasy-cut-luag-gems-green-lumogarnet","title":"Fantasy Cut LuAG Gems, Green Lumogarnet","description":"\u003cp\u003eThese are special fantasy cut LuAGs!  Each is unique and individually photographed.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eLuAG is an exotic lab-created crystal with the same structure as natural garnets, but a composition and properties which are impossible in nature, particularly its outrageously strong green fluorescence which makes it glow when exposed to sunlight and even some indoor light. This is what we call a 'lumogarnet' - a lab created garnet with incredible fluorescence, designed to help detect invisible radiation. This is one of my favorite synthetic materials--brilliant and hard enough for use in all jewelry (mohs 8.5!).\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe fluorescence really is crazy--even normal room lights will make a LuAG gem fluoresce, and outdoors with indirect sunlight can make it look like it is photoshopped into real life. A blacklight aimed directly at it makes it insanely bright. It is just a great material overall, perfect for the collector and jeweler alike.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"13.9ct 15x9.6mm","offer_id":50042109657376,"sku":"Fantasy_LuAG_001","price":417.0,"currency_code":"USD","in_stock":false},{"title":"14.5ct 15.9x9.8mm","offer_id":50042109493536,"sku":"Fantasy_LuAG_002","price":435.0,"currency_code":"USD","in_stock":false},{"title":"19.8ct 13.6mm","offer_id":50042109460768,"sku":"Fantasy_LuAG_003","price":594.0,"currency_code":"USD","in_stock":false},{"title":"20.7ct 14.2mm","offer_id":50042109329696,"sku":"Fantasy_LuAG_004","price":600.0,"currency_code":"USD","in_stock":false},{"title":"23.3ct 14.8mm","offer_id":50042109362464,"sku":"Fantasy_LuAG_005","price":650.0,"currency_code":"USD","in_stock":false},{"title":"25.4ct 15.1mm","offer_id":50042109591840,"sku":"Fantasy_LuAG_006","price":670.0,"currency_code":"USD","in_stock":false},{"title":"27.1ct 13.5mm","offer_id":50042109755680,"sku":"Fantasy_LuAG_007","price":700.0,"currency_code":"USD","in_stock":false},{"title":"27.7ct 13.6mm","offer_id":50042109395232,"sku":"Fantasy_LuAG_008","price":720.0,"currency_code":"USD","in_stock":false},{"title":"29.3ct 14.5mm","offer_id":50042109788448,"sku":"Fantasy_LuAG_009","price":750.0,"currency_code":"USD","in_stock":true},{"title":"31.8ct 15.4mm","offer_id":50042109559072,"sku":"Fantasy_LuAG_010","price":790.0,"currency_code":"USD","in_stock":true},{"title":"35.6ct 16.1mm","offer_id":50042109624608,"sku":"Fantasy_LuAG_011","price":890.0,"currency_code":"USD","in_stock":false},{"title":"45.5ct 18.5mm","offer_id":50042109690144,"sku":"Fantasy_LuAG_012","price":1100.0,"currency_code":"USD","in_stock":true},{"title":"74.5ct 21.4mm","offer_id":50042109428000,"sku":"Fantasy_LuAG_013","price":1600.0,"currency_code":"USD","in_stock":false},{"title":"Round 90.6 ct, 21.7mm","offer_id":51267522167072,"sku":"Fantasy_LuAG_00120260224","price":2400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/IMG_0003corp.jpg?v=1743439372"},{"product_id":"ghost-garnet-aka-pr-luag-lumogarnet-faceted-loose-gems-orange-glow","title":"Ghost Garnet aka Pr:LuAG Lumogarnet Faceted Loose Gems Orange Glow","description":"\u003cp\u003eThese are faceted 'Ghost Garnet', aka lab made Pr-doped LuAG (Lutetium Aluminum Garnet). 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This material is like an upgraded version of the classic GGG crossed with an aluminum garnet (like YAG and LuAG) to give it excellent hardness (8) while maintaining a high RI (1.9) and generally excellent gem properties. \u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"GAGG \/ Pixel 6.2ct 9.0x7.6mm","offer_id":50877481386272,"sku":"PXL_GAGG_001_20251107","price":97.0,"currency_code":"USD","in_stock":false},{"title":"GAGG \/ Pixel 7.7ct 8.7x7.4mm","offer_id":50877481419040,"sku":"PXL_GAGG_002_20251107","price":119.0,"currency_code":"USD","in_stock":true},{"title":"GAGG \/ Pixel 7.8ct 9.1x8mm","offer_id":50877481451808,"sku":"PXL_GAGG_003_20251107","price":121.0,"currency_code":"USD","in_stock":true},{"title":"GAGG \/ Pixel 9.7ct 9.7x8.2mm","offer_id":50877481484576,"sku":"PXL_GAGG_004_20251107","price":149.0,"currency_code":"USD","in_stock":true},{"title":"GAGG \/ Pixel 12.9ct 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It is what we call a 'lumogarnet' - a synthetic garnet with incredible fluorescence. It glows a bright yellow, slightly greener and brighter than already-bright Ce:YAG. This material is like an upgraded version of the classic GGG crossed with an aluminum garnet (like YAG and LuAG) to give it excellent hardness (8) while maintaining a high RI (1.9) and generally excellent gem properties. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Round Pendant 10mm ~8.5ct","offer_id":51530300850464,"sku":"Pend_GAGG_PXL12x8","price":450.0,"currency_code":"USD","in_stock":true},{"title":"Pixel Pendant 12x8mm ~8.8ct","offer_id":51531029086496,"sku":"Pend_GAGG_RND10","price":520.0,"currency_code":"USD","in_stock":true},{"title":"Stud Earrings 8mm ~8.8tctw","offer_id":51531029119264,"sku":"Stud_GAGG_8mm","price":480.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/Faceted_GAGG_Jewelry_Sterling.jpg?v=1777270907"},{"product_id":"giant-luag-retrohex-369ct","title":"Giant LuAG RetroHex 369ct","description":"\u003cp\u003eThis is one of my largest gems so far, a simple \u003cspan\u003eRetroHex\u003c\/span\u003e cut in LuAG, weighing in at 369ct.  It is  60 mm long and 36 mm wide, making it enormous\u003c\/p\u003e\n\u003cp\u003eThis one was an amazing pain to cut but I think it was totally worth it with its incredible glow and heft in the hand.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Default Title","offer_id":51742826889504,"sku":"Gem_RetroHexTH_20260830","price":4200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/luagretrohex.jpg?v=1779737552"},{"product_id":"faceted-cerium-yag-gems","title":"Faceted Cerium YAG Gems","description":"\u003cp\u003eThis is classic cerium-doped YAG (Yttrium Aluminum Garnet) with a bright yellow base and strong yellow fluorescence, especially under blue light - it likes blue even more than it likes UV.  \u003c\/p\u003e\n\u003cp\u003eCerium YAG is one of the most classic gems of science.  Cerium gives YAG a canary yellow base color and incredible yellow fluorescence--it is so beautiful that it was first used in jewelry before a scientist realized that it had potential as a scintillator.  Scintillators use strong fluorescence to convert high energy wavelengths to visible light that can be more easily detected, and cerium YAG was the first of the garnet scintillators, though it has since been mostly replaced with denser GAGG and LuAG.  It isn't as bright as GAGG or LuAG under UV but it still has a vivid yellow look and is very impressive to the eye.  Since it has vivid fluorescence visible under everyday conditions, it's what we call a 'lumogarnet'.\u003c\/p\u003e\n\u003cp\u003eCeYAG is an amazing material for jewelry, with a good hardness of 8.5, excellent optical properties and little to no trouble in cutting or polishing.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Round, 2.5mm, 0.1ct","offer_id":51821983432992,"sku":"Gem_YAGCe_Rnd2.5","price":9.0,"currency_code":"USD","in_stock":false},{"title":"Round, 13mm, 16.8ct","offer_id":51821983465760,"sku":"Gem_YAGCe_Rnd13","price":509.0,"currency_code":"USD","in_stock":true},{"title":"Hex, 5mm, 0.75ct","offer_id":51821983498528,"sku":"Gem_YAGCe_Hex5","price":31.0,"currency_code":"USD","in_stock":true},{"title":"Hex, 6mm, 1.2ct","offer_id":51821983531296,"sku":"Gem_YAGCe_Hex6","price":47.0,"currency_code":"USD","in_stock":true},{"title":"Hex, 7mm, 2ct","offer_id":51821983564064,"sku":"Gem_YAGCe_Hex7","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Hex, 8mm, 3.2ct","offer_id":51821983596832,"sku":"Gem_YAGCe_Hex8","price":108.0,"currency_code":"USD","in_stock":true},{"title":"Square, 3mm, 0.17ct","offer_id":51821983629600,"sku":"Gem_YAGCe_SQ3","price":11.0,"currency_code":"USD","in_stock":false},{"title":"Square, 4mm, 0.4ct","offer_id":51821983662368,"sku":"Gem_YAGCe_SQ4","price":19.0,"currency_code":"USD","in_stock":true},{"title":"Square, 5mm, 0.9ct","offer_id":51821983695136,"sku":"Gem_YAGCe_SQ5","price":37.0,"currency_code":"USD","in_stock":true},{"title":"Square, 6mm, 1.6ct","offer_id":51821983727904,"sku":"Gem_YAGCe_SQ6","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Square, 7mm, 2.4ct","offer_id":51821983760672,"sku":"Gem_YAGCe_SQ7","price":85.0,"currency_code":"USD","in_stock":true},{"title":"Square, 8mm, 3.4ct","offer_id":51821983793440,"sku":"Gem_YAGCe_SQ8","price":114.0,"currency_code":"USD","in_stock":true},{"title":"Square, 9mm, 4.8ct","offer_id":51821983826208,"sku":"Gem_YAGCe_SQ9","price":150.0,"currency_code":"USD","in_stock":true},{"title":"Oval, 6.5x4.5mm, 0.75ct","offer_id":51821983858976,"sku":"Gem_YAGCe_00120260611","price":31.0,"currency_code":"USD","in_stock":true},{"title":"Oval, 7.6x5.6mm, 1.5ct","offer_id":51821983891744,"sku":"Gem_YAGCe_00220260611","price":57.0,"currency_code":"USD","in_stock":false},{"title":"Oval, 8.8x6.2mm, 2ct","offer_id":51821983924512,"sku":"Gem_YAGCe_00320260611","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Oval, 9.2x6.6mm, 2.3ct","offer_id":51821983957280,"sku":"Gem_YAGCe_00420260611","price":82.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/Faceted_Ce_YAG_Gemstones.jpg?v=1781165103"},{"product_id":"luag-plumbob-pendants","title":"LuAG Plumbob Pendants","description":"\u003cp\u003eThese are pendants made from lab-created hyperfluorescent LuAG lumogarnets, cut in a fun plumbob design. They are set in solid sterling silver.\u003cbr\u003e\u003cbr\u003eLuAG (Lutetium Aluminum Garnet) is a hyperfluorescent lab-created garnet which is used in science and medicine as a 'scintillator', a material whose fluorescence is so strong it can be used in detecting invisible radiation like x-rays and gamma rays. The way this is done is by cutting the garnet into square 'pixels', each of which is put in front of a sensor. When a gamma ray or x-ray hits one of the pixels they fluoresce and the sensor can detect the light, much like in a digital camera.\u003cbr\u003e\u003cbr\u003eThese stones don't just glow, they reach out and grab the eye when exposed to sunlight, diffuse skylight and even indoor lighting. They make incredible jewelry which is guaranteed to make a statement. These should be a great gift for any science-loving relative, fashionable radiologist, significant other, cyberpunk friend or of course for yourself. \u003cbr\u003e\u003cbr\u003ePlus, since we saved these crystals from the waste stream, this is a rare example of an upcycled gemstone.\u003cbr\u003e\u003cbr\u003eLuAG is more durable than natural garnets with a hardness of 8.5. Even normal room lights will make it fluoresce, and outdoors with indirect sunlight can make it look like it is photoshopped into real life. It is just a great gem.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Plumbob A, ~13.5×6.2mm","offer_id":52178678186272,"sku":"Pend_LuagPlum_00120260811","price":234.0,"currency_code":"USD","in_stock":false},{"title":"Plumbob B, ~13×6.2mm","offer_id":52178678219040,"sku":"Pend_LuagPlum_00220260811","price":227.0,"currency_code":"USD","in_stock":false},{"title":"Plumbob C, ~13.3×6.4mm","offer_id":52178678251808,"sku":"Pend_LuagPlum_00320260811","price":227.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob D, ~13×6.3mm","offer_id":52178678284576,"sku":"Pend_LuagPlum_00420260811","price":213.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob E (Damaged Bail), ~14.3×6.2mm","offer_id":52178678317344,"sku":"Pend_LuagPlum_00520260811","price":177.0,"currency_code":"USD","in_stock":false},{"title":"Plumbob F, ~13.4×6.3mm","offer_id":52178678350112,"sku":"Pend_LuagPlum_00620260811","price":233.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob G, ~14.5×6.3mm","offer_id":52178678382880,"sku":"Pend_LuagPlum_00720260811","price":244.0,"currency_code":"USD","in_stock":false},{"title":"Plumbob H, ~14.5×6.4mm","offer_id":52178678415648,"sku":"Pend_LuagPlum_00820260811","price":242.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob I, ~13.4×6.2mm","offer_id":52178678448416,"sku":"Pend_LuagPlum_00920260811","price":231.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob J, ~13.3×6.3mm","offer_id":52178678481184,"sku":"Pend_LuagPlum_01020260811","price":235.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob K, ~14.4×6.2mm","offer_id":52178678513952,"sku":"Pend_LuagPlum_01120260811","price":241.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob L, ~14.1×6.4mm","offer_id":52178678546720,"sku":"Pend_LuagPlum_01220260811","price":248.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob M, ~14.2×6.5mm","offer_id":52178678579488,"sku":"Pend_LuagPlum_01320260811","price":258.0,"currency_code":"USD","in_stock":false},{"title":"Plumbob N, ~14.1×6.3mm","offer_id":52178678612256,"sku":"Pend_LuagPlum_01420260811","price":243.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob O, ~13.1×6.3mm","offer_id":52178678645024,"sku":"Pend_LuagPlum_01520260811","price":205.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob P, ~14.3×6.2mm","offer_id":52178678677792,"sku":"Pend_LuagPlum_01620260811","price":248.0,"currency_code":"USD","in_stock":false},{"title":"Plumbob Q, ~13.5×6.3mm","offer_id":52178678710560,"sku":"Pend_LuagPlum_01720260811","price":240.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob R, ~14.2×6.4mm","offer_id":52178678743328,"sku":"Pend_LuagPlum_01820260811","price":251.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob S, ~14.7×6.2mm","offer_id":52178678776096,"sku":"Pend_LuagPlum_01920260811","price":248.0,"currency_code":"USD","in_stock":false},{"title":"Plumbob T, ~14.2×6.2mm","offer_id":52178678808864,"sku":"Pend_LuagPlum_02020260811","price":249.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob U, ~14×6.3mm","offer_id":52178678841632,"sku":"Pend_LuagPlum_02120260811","price":233.0,"currency_code":"USD","in_stock":true},{"title":"Plumbob V, ~14.7×6.5mm","offer_id":52178678874400,"sku":"Pend_LuagPlum_02220260811","price":258.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/Pendant_LuAG_Plumbob.jpg?v=1786504757"},{"product_id":"space-laser-garnet-jewelry","title":"Space Laser Garnet Jewelry","description":"\u003cp\u003eThese are lab created 'Space Laser' garnet set in sterling silver, or more technically speaking chromium + neodymium YAG (Yttrium Aluminum Garnet).\u003cbr\u003e\u003cbr\u003eThis is a really cool one, dual-doped neodymium+chromium YAG. Nd:YAG is the most classic laser crystal, and adding chromium gives it two benefits in space.  First, chromium radiation hardens the crystal, allowing it to function in the unforgiving environment outside our atmosphere.  Adding chromium also allows the creation of self-switched pulsed lasers which are hard to grow but save weight and have fewer points of failure, making them great for use in very demanding applications.\u003c\/p\u003e\n\u003cp\u003eAnd did I mention these go into space! They are grown by a top US photonics company and a laser built around one of these will be on the 2028 Mars rover(!!!) in addition to their routine use on satellites. In theory a laser crystal cut from one of these very same crystals could be on mars in a few years! The material we got is from the very tops of the crystals which tends to concentrate any chemical or structural imperfections and as such can't be used, but the main bodies of these crystals have no doubt made it into functioning lasers.\u003cbr\u003e\u003cbr\u003eFrom a gem perspective it is also amazing material. It looks similar to our classic christmas garnet, with a rich green base and strong red fluorescence, but with an even richer and slightly bluer green base. It also has odd pale yellow fluorescence under short wave unlike classic christmas garnet which is red in short and long wave, so it is easy to distinguish from the more common chromium YAG. We have a limited amount of this material and it's one of the best things we've ever gotten.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Space Laser Garnet Pendant, 8mm, ~3.1ct","offer_id":52181649916192,"sku":"Pend_SpaceLaser_Rnd8","price":389.0,"currency_code":"USD","in_stock":true},{"title":"Space Laser Garnet Stud Earrings, 6mm, ~2.7tctw","offer_id":52181447967008,"sku":"Stud_SpaceLaser_Rnd6","price":338.0,"currency_code":"USD","in_stock":true},{"title":"Space Laser Garnet Dangle Earrings, 6mm, ~2.6 tcwt","offer_id":52181842100512,"sku":"Ear_SpaceLaser_DangleRnd6","price":368.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/PendantSpace_Laser_YAG_8mm_Round_20260813_010021.jpg?v=1786597393"},{"product_id":"lso-gem-rough-blue-fluorescent-glow-in-the-dark-scintillator-crystal","title":"LSO Gem Rough, Blue Fluorescent Glow in the Dark Scintillator Crystal","description":"\u003cp\u003eThis is facet rough of LSO (Lutetium Oxyorthosilicate), close cousin to LYSO (Lutetium Yttrium Oxyorthosilicate).  All show bright blue fluorescence strong enough to give them a full color change to light blue in direct sunlight.  They also have a mild afterglow, showing a blue glow after exposure to UV which can be seen in cupped hands.  Note that LSO reacts much more strongly to 365 nm UV, and 395nm will be much less effective.\u003cbr\u003e\u003cbr\u003eLSO is a very unusual crystal grown for use in science and industry.  It has a clear base and very strong blue fluorescence. It glows incredibly bright under UV light as well as higher energy radiation, and because of this it can be used to detect invisible gamma rays, xrays and even alpha rays.  Given how expensive lutetium is LSO has been largely supplanted by LYSO, where less expensive yttrium substitutes in.  The main differences are that LSO is more dense and tends to be more phosphorescent. Its fluorescence is so strong it has a striking blue glow in sunlight--this effectively gives it a color change effect, since it looks colorless under room lighting and light purple-blue outdoors. It has a very interesting and unique look which you can't find anywhere else.  Based on the density and fluorescence characteristics we believe this is either endmember LSO, or has only a small amount of yttrium mixed in.\u003cbr\u003e\u003cbr\u003eAsianometry on youtube recently made a cool video about this material which you can watch here https:\/\/www.youtube.com\/watch?v=XpYYGiUX0x0\u003cbr\u003e\u003cbr\u003eLSO is not very hard at around 5.8, just under tanzanite, and as such is not a good choice for a ring, though it would be great in a pendant or earrings.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Rough Piece 1-2g","offer_id":52352829620512,"sku":"Rgh_LSO_1g","price":33.0,"currency_code":"USD","in_stock":true},{"title":"Rough Piece 2-3g","offer_id":52352829653280,"sku":"Rgh_LSO_2g","price":50.0,"currency_code":"USD","in_stock":true},{"title":"Rough Piece 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The stone weighs in at a staggering 168 carats, and is 32x28 mm in size.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Default Title","offer_id":67625578856736,"sku":"Gem_Custom_TH00120261001","price":2250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/capture_20261001_161007.jpg?v=1790886187"},{"product_id":"pixel-cut-mn-spinel-38-15ct-minecraft-emerald-custom-design-inspired-by-minecraft","title":"Pixel Cut Mn:Spinel 38.15ct \"Minecraft Emerald\" (Custom Design inspired by Minecraft)","description":"\u003cp\u003eThis is a pixel cut manganese spinel that I cut myself!  The stone weighs in at a whopping 38.15 ct, and is 22.7x17.3 mm in size\u003c\/p\u003e\n\u003cp\u003eI cut this as a gem using a design I made inspired by a Minecraft emerald.  The material is manganese spinel, a type of vivid fluorescent green spinel grown by the now-defunct djeva company using the flame fusion method.\u003c\/p\u003e\n\u003cp\u003eI think the stone turned out even better than my previous minecraft emerald gems!\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Default Title","offer_id":67638159409440,"sku":"Gem_CustomTH_00120261004","price":825.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/Minecraft_Inspired_Emerald_Gemstone_IRL.jpg?v=1791152043"},{"product_id":"blue_spinel_remake_comparisons","title":"Lab Blue Spinel Long Hexagons (Custom Designs inspired by Ocarina of Time - remake vs original)","description":"\u003cp\u003eThese are blue spinel gems that I cut myself! \u003c\/p\u003e\n\u003cp\u003eThe new ocarina of time remake is coming out soon, and I wanted to facet gems comparing the old and new rupee designs. Both of these are blue rupees (worth five green ones), cut from flame fusion spinel, grown in the now-defunct Swiss Djeva factory (which was the gold standard for lab gem production).\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Classic Design, 19×8.8mm, 4.8ct","offer_id":67770340049184,"sku":"Gem_CustomTH_00120261014","price":477.0,"currency_code":"USD","in_stock":false},{"title":"Remake Design, 18.5×10.3mm, 12ct","offer_id":67770340081952,"sku":"Gem_CustomTH_00220261014","price":524.0,"currency_code":"USD","in_stock":false},{"title":"Hybrid Design, 19×8.8mm, 6.9ct","offer_id":67860543734048,"sku":"Gem_CustomTH_00120261018","price":494.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/Comparison_Front_Photo.jpg?v=1792012364"}],"url":"https:\/\/store.gemsofscience.com\/collections\/lumogarnets.oembed?page=3","provider":"Gems Of Science","version":"1.0","type":"link"}