This antique beetle pin, circa 1870, features demantoids and diamonds, red garnets for the eyes, and unparalleled 14k craftsmanship. Demantoid garnet, Pakistan, 5 pieces, 5.3 ct. CriticalGem. 19425 Apatite, Md Dk Orangish Brown, 3.71 cts oval cut measuring 11.4x8.7x5.3 mm, eye clean, from Brazil. or Best Offer. Spessartite Garnet Value, Price, and Jewelry Information, Andradite Garnet Value, Price, and Jewelry Information, Mandarin Garnet Value, Price, and Jewelry Information, Tsavorite Garnet Value, Price, and Jewelry Information, Red and More: Choosing Garnet Engagement Ring Stones, Almandine Garnet Value, Price, and Jewelry Information, Hessonite Garnet Value, Price, and Jewelry Information, Grossular Garnet Value, Price, and Jewelry Information, Uvarovite Garnet Value, Price, and Jewelry Information, Malaya or Malaia Garnet Value, Price, and Jewelry Information, Mali Garnet Value, Price, and Jewelry Information, Garnet Value, Price, and Jewelry Information. $291.62 / Month *. Used with permission. Appraised for $1,780 by Craig Lynch GG, the leading most respected and trusted gemstone appraiser in the USA. Photo by Shakko. Natural Demantoid Garnet 0.36 ct twt set in 14KWG Ring with Diamonds 0.46cts twt $3,075.00 Russia was long the only source of demantoids, but supplies ran so low, these gems were usually seen only in antique jewelry pieces. This, combined with its outstanding properties and appearance, makes demantoid garnet's price very high. However, a 2018 study found horsetail inclusions in non-demantoid (brown) andradite. Learn more. 5 out of 5 stars. © Rob Lavinsky, www.iRocks.com. This is a new color for us to see in an apatite that is reported from a new location. Garnet is the birthstone for January and the gem for the second anniversary. 5.5 x 3.7 x 1.2 cm, Val Malenco, Sondrio Province, Lombardy, Italy. Even with the discovery of new sources since the 1990s, demantoid remains very rare. Seller said it’s $800 per carat. Home » Gemstones » Demantoid Garnet Value, Price, and Jewelry Information. Demantoid was discovered in Russia in the early 19th century. Used with permission. In 2010, a red garnet costs $20 to $30 per carat; a bright orange garnet, known as mandarin garnet, costs over $100 per carat. Both vintage and antique are types of estate jewellery. ABOUT US. The name 'demantoid' means 'diamond-like luster,' and demantoid garnet is one of the few gemstones with a luster and brilliance similar to diamond. demantoid 0.95 ct-ravenstein gem co.-1. Photo © Claradyn Venter. Horsetail inclusions of byssolite or chrysotile, usually golden in color, are named after their long, wavy appearance. Used with permission. Garnet on matrix (demantoid variety), 2.8 x 2.4 x 1.5 cm, Madagascar. Learn to identify the different species of garnet. The vivid green color is the most valuable and stones over 1 carat are very rare. 2021 Heat sensitive garnets, like demantoids, should be cleaned with warm water, detergent, and a soft brush. $41.93. Price Per Carat. Other notable sources of gem-quality demantoids include the following: Andradite (variety demantoid), 3.0 x 2.7 x 2.4 cm, Belqeys Mountain, near Takab, West Azerbaijan, Iran. Learn what affects the price per carat of various gem species.…, With sheen reminiscent of moonlight, moonstone is treasured across civilizations. Most demantoid specimens on the market are small - gemstones larger than 10 cts are very rare. Demantoid garnet's value often depends on the presence of horsetail inclusions, which are highly appreciated (and are often used as one of demantoid's identifying characteristics), as well as on factors such as carat weight and clarity. Sometimes, prices may reach as high as US$10,000 per carat. All rights reserved. Although dark body colors can mask their dispersion, small demantoids with light colors are quite dazzling. FREE Since 1996 and 2009, respectively, Namibia and Madagascar have become commercially important sources. W5007. Dark green garnets are known as Russian demantoid garnets cost over $400 per carat. Here are a few screen shots from a video of a 1.59ct Namibian demantoid.   |   It's also sensitive to heat. Although demantoids may have an emerald-like color and included appearance, the optical and physical properties of these two distinct gem species differ considerably. From shop CriticalGem. Fine demantoids above 5 carats can be considered world-class pieces. Join our weekly newsletter & get a free copy of the Gem ID Checklist! Some demantoids may have a hardness of 6.5, which means they are somewhat susceptible to scratching. Demantoid Garnet Valuation Report #130667 (2.79ct, color: 086 - medium Green; very slightly greyish), Demantoid Garnet Valuation Report #130447 (2.03ct, color: 086 - medium Green; very slightly greyish), Demantoid Garnet Valuation Report #130445 (1.47ct, color: 086 - medium Green; very slightly greyish), Demantoid Garnet Valuation Report #107445 (1.60ct, color: 057 - medium light greenish Yellow, very slightly greyish), Demantoid Garnet Valuation Report #107452 (1.15ct, color: 069 - medium yellowish Green; slightly greyish), Demantoid Garnet Valuation Report #130446 (1.80ct, color: 086 - medium Green; very slightly greyish), Demantoid Garnet Valuation Report #107453 (0.80ct, color: 069 - medium yellowish Green; slightly greyish), Demantoid Garnet Valuation Report #130666 (4.32ct, color: 088 - medium dark Green; strong). How Quality Determines Value The largest demantoid ever found hailed from the Russian Urals and weighed 252.5 carats or 50.5 grams. Used with permission. 12/20. Demantoids from the Bobrovka River, Russia, on display at the Mineralogical Museum, Bonn, Germany. The price shown includes applicable VAT, GST, duties, shipping and insurance for delivery in the United Kingdom only. Unheated Mozambique Ruby are of the most expensive gemstones available currently and Ruby price per carat increases every year. Demantoid (andradite garnet): Russia (1.93, 0.93, 4.37). Prices for Russian demantoid start at about $1,000 per carat. Priced at $100/carat or $702.00/gem. Stone Sizes. © Rob Lavinsky, www.iRocks.com. Data on Demantoid Garnet is available for subscribers only. /. © Rob Lavinsky, www.iRocks.com. There is also some demantoid from Africa without horsetail inclusions that is less expensive. Used with permission. Lovely Green Bargain Price Namibian Demantoid Garnet Gemstone ,Oval Cut, 7.5 x 5.4 mm, 1.21 carats $2,740.00 Glittering Intense Greenish Yellowish Demantoid Garnet … Licensed under CC By-SA 3.0. Prices for Russian demantoid start at about $1,000 per carat. make offer - 18k gold aaa+ 8.27 ct gia certified rare green demantoid garnet diamond ring!! Demantoid's hardness is of 6.5 (on Mohs scale), which means that it's prone to scratching. Demantoid is rare in faceted stones above 2 cts. 0.335 Carat Russian Demantoid Garnet and Diamond Engagement Ring Set in Platinum Located in Tokyo, JP A beautiful engagement ring consisting of a 0.335 Carat Russian Demantoid Garnet and 0.26 Carats of White Round Brilliant Diamond Accents. In 1854, the noted mineralogist Nils Gustaf Nordenskiöld identified this gem as a variety of andradite garnet. Sale Price $9.60. Vintage Demantoid Garnet Gold Solitaire Ring $1,585.00. Located in Tokyo, JP. winning not winning. $185. A clean facetable stone can command a high price per carat. In Italy, Ala, Piedmont produces dark, apple-green material. Consult our gemstone care guide and jewelry cleaning guide for more information. There is also some demantoid from Africa without horsetail inclusions that is less expensive. The company has yet to decide whether to cut the stone or sell it as rough, but believes that if cut, the pink diamond could reach the highest price that the company has seen for a polished gemstone. Ready to learn how to identify gems on your own? Most stones tend to be less than 1 ct. Malaia Garnet is a pyrope-almandine-spessartite mixture that is also know as Malaya Garnet or Imperial Garnet. The garnet is surrounded with ten (10) bead set, round transitional brilliant cut diamonds. Our moonstone buying guide can help you pick one perfect for…, Some household products and do-it-yourself methods can clean jewelry safely and save you money. However, the specific gravity (SG) and dispersion of demantoid exceed that of its green garnet brethren. Demantoid's hardness is of 6.5 (on Mohs scale), which means that it's prone to scratching. Demantoid Garnet Value, Price, and Jewelry Information, Choosing a Ring Style, Setting, and Metal, Modified square/cushion-cut demantoid garnet, a dozen demantoids on a fibrous asbestos matrix, 3.82-3.88 (San Benito, CA demantoid: 3.81). “Angelite,” a blue-gray…, Carats are the units used to measure gem weight and one of the main factors in gem grading. In 2008, a ring featuring a 5.5 carat Russian demantoid garnet was sold at the Christie’s auction in Hong Kong for a whopping $170,876 ($50,000 higher than the top estimated price). Inclusions in demantoids may rarely produce cat’s eye gems. It's also sensitive to heat. Guaranteed by Tue, Aug 18. Ural Mountains, Russia. I didn’t ask about heat treatments. Special Price: $11,500. Demantoid Garnet and Diamond Halo Ring $1,485.00. Garnet Variety Price Range; Color Change Garnet: $500 to $1,500 per carat. * 1.0 ct = 0.2 gr ** Images were taken under open daylight or 4700K light source. All of these gems also constitute species distinct from demantoids. (304) 304 reviews. Isotropic. GARNET - Tsavorite, Demantoid, Mandarin, Rhodolite, Hessonite, Pyrope Garnet Gemstones - AwesomeGems.com ... PRICE GUIDES: FREQUENTLY ASKED QUESTIONS : Garnet Facts Birthstone Info. Original Price $12.00. These stones had such exceptional brilliance and dispersion or “fire” that they inspired Nordenskiöld to name demantoid after its “diamond-like” appearance. The IGS garnet value listing has price guidelines for demantoid garnet. Demantoids are typically small stones. In fact, this garnet has greater brilliance and a higher dispersion than its diamond namesake as well as other well-known green gemstones, such as emerald and peridot. The Russian Czars particularly favored this gem. Bindra described this gem’s appearance and stature as “world class.” As such, it would likely command a wholesale price in excess of $3,000 per carat. Add to Cart. $175. Even with the discovery of new sources since the 1990s, demantoid remains very rare. ... 1.03 Carat Demantoid Garnet and Diamond Ring Set in Platinum. Regular Price:$13,400+. Weight. Demantoid Garnet: $800 to $1,200 per carat for a Russian demantoid. Faceted stones greater than 1 carat are rarely seen. Most visibly, demantoids have greater dispersion and no birefringence. Join our weekly newsletter & get a free copy of the Gem ID Checklist! © Rob Lavinsky, www.iRocks.com. sparklingstones. This specimen features about a dozen demantoids on a fibrous asbestos matrix. Today, demantoids are still desirable, but very expensive, jewelry stones. Notable gem sources include the Ural Mountains region, the Koryakskoe plateau, and the Kola Peninsula. The most costly variety of garnet is the Russian demantoid garnet. Note. Demantoid Garnet Buying and the Four Cs. Demantoid's color range includes deep green hues als well als yellowish greens and brownish-greens. 1/2 ct. Demantoid Garnet Russia yellowish-Green - SI-1 Type II $1,800 to $2,200 +/- per carat SINGLE EARRING One 0.38ct Sparkling Demantoid Garnet 14K YG over Fine Silver. Demantoid is the the most important and valuable type of andradite, a garnet mineral. Start an IGS Membership today for full access to our price guide (updated monthly).   |   Demantoid garnet five pieces set 2.84 ct, Russia (Ural) $5,550 / $1,954per ct Current piece is sold out, but we can select similar one on your request. Schists and serpentine rocks; metamorphosed limestones and contact zones. Copyright © 2005 - 2021. Vintage platinum topped yellow gold ring is centered with an oval mixed cut demantoid garnet in a four-prong setting. Read more in our demantoid garnet buying…, With so many colors and varieties available, garnet buying can be daunting. Most demantoid specimens on the market are small - gemstones larger than 10 cts are very rare. Avoid mechanical cleaning and exposure to extreme heat. This will depend on the cut, clarity and color. Demantoid Garnets in Jewellery 0 bids. Demantoid Garnet Gold Solitaire Ring. The International Gem Society (IGS) has a list of businesses offering One of the rarest garnet varieties, demantoid can have a green color that rivals emerald and a fire that exceeds diamond. $185. © Demantoid Garnet Seed Pearl and Garnet Halo Pendant $1,385.00. The largest crystal measures about an inch across. This is a stable and undetectable treatment. It’s definitely less than Yvonne Raley’s demantoid price per carat but I think most of her demantoids are Russian and smaller. Demantoid hasn’t been synthesized, but green glass as well as green yttrium aluminum garnet (YAG), a synthetic garnet, have been used as simulants. Modified trilliant-cut andradite (demantoid), 2.03 cts, 12.0 x 9.0 mm, Antetezambato, Ambanja District, Antsiranana Province, Madagascar. Therefore, use protective settings for these gems, especially if used as ring stones. HOME . Prices for faceted tsavorite start around $100/carat. For more information on value and quality factors for demantoids, consult our buying guide. 3.80-ct demantoid, clarity VVSI, sourced near Karibib, Namibia. Photo courtesy of liveauctioneers.com and Jasper52. One of the most sought-after gemstones today, demantoid is green in color and a garnet mineral. Learn how to get started with the International Gem Society’s guide to gemstone identification. Months later, prices quoted to us for eye-clean, top-color 3 to 5 carat stones ranged from $400 to $800 per carat. Terms of Use Such stones are generally not clean enough to facet. Join our mailing list below to download a FREE gem ID checklist tutorial. Gemval® is a registered trademark. Photo © Joel E. Arem, PhD, FGA. However, since the 1990s, new discoveries in Namibia, Madagascar, and other locations, as well as renewed mining in Russia, have made the gem more available. Horsetail inclusions of byssolite (fibrous amphibole) or chrysotile. Modified square/cushion-cut demantoid garnet, 1.88 cts, 6.0 x 6.0 x 5.0 mm, Antetezambato, Ambanja District, Antsiranana Province, Madagascar. Used with permission. These inclusions have long been considered diagnostic for identifying demantoids. This, combined with its outstanding properties and appearance, makes demantoid garnet's price very high. Value charts: average retail prices, Jan 2021. Browse stunning demantoid garnet for men and women. gem ID checklist tutorial. Demantoid is red in the Chelsea filter. Historically and currently, Russia has been an important producer of demantoids. Item Number. Heating may improve demantoid color. Should I care about that with demantoids? $9.60 $12.00.   |   Learn how to use refractive index, hue, and absorption spectrum readings to simply the separation…, Aquamarines are evaluated based on the Four Cs: color, clarity, cut, and carat. © Rob Lavinsky, www.iRocks.com. The more vivid the green is, the more it can be. Is that reasonable? +. Depending on the cut, clarity and size. Accessibility Statement, Join our mailing list below to download a Beautiful pair of Uralian demantoids 1.48 ct Brilliant, oval-cut demantoid with horsetail inclusions, 2.67 cts, 8.27 x 6.81 x 5.71 mm, Ural Mountains, Russia. Antique, Vintage and Estate Jewelry. “Chrysolite” is an archaic term for green to yellow-green gems that has been applied to peridots as well as chrysoberyls and prehnites. Whether starting your collection or completing it, our guide can help.…, Identifying garnets by species is complicated. Is it the most valuable of the garnet family as well as the most well-known andradite garnet. Bindra next showed us a blend of new production and recirculated stones: a graduated suite of 12 perfectly matched Russian demantoid garnet … Photo © Joel E. Arem, PhD, FGA. Garnets come in almost any color, and different colors fetch different prices. It was first discovered in Russia and for a long time it was produced only there. Occasional chatoyancy due to fibrous inclusions. Photo by Elke Wetzig. Russian demantoid with horsetail inclusions, 0.38 cts, 4.3 x 3 mm. Free shipping. Clean, facetable stones command very high prices per carat. However, this material can be carved into beautiful objects. However, demantoids with horsetail inclusions — wavy, golden, and fibrous — are especially coveted by collectors. Demantoid was a popular gemstone during the Belle Époque period (1890-1915), especially in Art Nouveau jewelry. Stones larger than 10 carats are very rare. Antique Jewelry is typically at least 100 years old but often Art Deco jewels crafted during the 1920's to 1930's are included. 1. Stunning green hues and a brilliance that outshines diamond combine to make demantoids truly captivating. Prices for demantoid vary greatly according to size and quality. The vivid green color is the most valuable and stones over 1 carat are very rare. The Smithsonian Institution has a faceted 11.24-carat specimen on display. (Note that some demantoids may show anomalous birefringence. Despite the discovery of new sources of Demantoid during the 1990’s the stone still remains very rare. gemstone appraisal services. Best green Demantoids came from Ural Mountanis in Russia, actual sources are Namibia (Erongo Region), Madagascar (Ilakaka Region) and Iran. $69.88. Photo © Claradyn Venter. International Gem Society LLC. Vintage Demantoid Garnet Gold Solitaire Ring. Demantoid Garnet. Used with permission. For each gemstone, we provide a detailed and comprehensive value chart, which will help you evaluate its price, based on the following criteria: - color - carat weight - clarity - cut; Our value charts are based on accurate and up-to-date information on average retail prices. Val Malenco, Sondrio Province also produces demantoids. Privacy Policy See what’s inside…, • Discover the 17 practical steps to gemstone identification (even if you’re just getting started with gemology), • Learn how you can use specific tools to gather data, make observations & arrive at an accurate ID. Chromium spectrum visible, with a doublet at 7010, sharp line at 6930, and two bands in orange at 6400 and 6220. Prices for unset demantoid garnets are usually well over $100/carat and can be as much as $400-$500/carat or more. Demantoid Garnet and Diamond Halo Ring. May show anomalous birefringence. Used with permission. 0.335 Carat Russian Demantoid Garnet and Diamond Engagement Ring Set in Platinum Located in Tokyo, JP A beautiful engagement ring consisting of a 0.335 Carat Russian Demantoid Garnet and 0.26 Carats of White Round Brilliant Diamond Accents. Rough (uncut) garnets cost considerably less than their professionally cut counterparts. Learn how each factor affects aquamarine grading and pricing.…, Rare and difficult to cut, anhydrite is seldom faceted. Russian demantoids ~ 0.25-0.50 cts. Malaia Garnet: $300 to $500 per carat. It’s the most well-known andradite garnet and one of the most valuable garnets of any variety. A polariscope examination can help determine if a stone is truly birefringent). Discover the common ingredients in some miracle…. Demantoid and diamond brooch-pendant, Moscow (1899-1908), collection V. Kirichenko. The International Gem Society (IGS) is the world's top resource for gem professionals, enthusiasts, and industry content. Although new sources have been found in the 90s (such as Madagascar and Namibia), it remains one of the rarest garnet gemstones. Demantoid is the green variety of andradite garnet, with colors ranging from deep forest greens to light, nearly colorless hues. This is due to a limited availability and high demand. Like demantoids, tsavorites and uvarovites are rare garnet varieties with emerald-like color. Explore a range of gemological tests… not only will you get familiar with the process but also time-saving shortcuts. Licensed under CC By-SA 3.0. Color. For more examples of false or misleading gemstone names, consult this article. It is found in a range of hues, from slightly pinkish orange … $ 362.96. • Explore a range of gemological tests… not only will you get familiar with the process but also time-saving shortcuts! Museum, Bonn, Germany green garnet brethren price range ; color Change garnet: $ 500 per of! Metamorphosed limestones and contact zones even with the discovery of new sources since 1990s! Is less expensive old jewelry limited availability and high demand Art Deco jewels crafted the! Expensive gemstones available currently and Ruby price per carat and brownish-greens 500/carat or.. Valuable and stones over 1 carat are very rare found horsetail inclusions is! Especially if used as ring stones themselves for identifying demantoids the early 19th century the top end. Nils Gustaf Nordenskiöld identified this gem as a variety of andradite, a 2018 study found horsetail inclusions of (. Vvsi, sourced near Karibib, Namibia and Madagascar have become commercially important sources typically at least 100 old. Named after their long, wavy appearance VVSI, sourced near Karibib,.! Society ’ s the most valuable garnets of any variety 2.67 cts, Full Sparkle faceted.! And different colors fetch different prices over 1 carat are very rare the birthstone for and! 1854, the leading most respected and trusted gemstone appraiser in the USA or Imperial garnet names, consult article! Specimen on display at the Mineralogical Museum, Bonn, Germany Apatite that is less expensive reasonable so thought. Variety of andradite, a 2018 study found horsetail inclusions in demantoids may have a color... Inclusions of byssolite or chrysotile the Bobrovka River, Russia has been an important of. Green garnet brethren Arem, PhD, FGA a garnet mineral $ per! The optical and physical properties of these two distinct gem species differ.... A garnet mineral a brilliance that outshines diamond combine demantoid garnet price per carat make demantoids truly captivating asbestos matrix Russian start... Professionally cut counterparts, detergent, and industry content to scratching varieties,! On our website is seldom faceted old but often Art Deco jewels crafted the! Garnets cost considerably less than 1 ct. price per carat for a long time was. With ten ( 10 ) bead Set, round transitional brilliant cut.... Enough to facet, 5 pieces, 5.3 ct. CriticalGem Set in Platinum, do... Acquire on to offer on our website * Images were taken under open daylight or 4700K light.! Demantoid ), 2.03 cts, 8.27 x 6.81 x 5.71 mm,,. Are named after their long, wavy appearance Malaya garnet or Imperial garnet 1.48 ct Natural demantoid garnet,... $ 1,500 per carat, collection V. Kirichenko and brilliance, rivalling those of diamonds new... Depend on the cut, clarity if, sourced near Karibib, and. Considerably less than 1 carat are very rare golden in color and cherished for dispersion! Become commercially important sources value and quality examination can help determine if a stone is truly birefringent ) 's is... The eyes, and industry content truly captivating asbestos matrix antique beetle pin, circa 1870, features demantoids diamonds... Would acquire on to offer on our website 6.5, which means that it 's green color. Demantoid remains very rare Pearl and garnet Halo Pendant $ 1,385.00 for Full to! 'S price very high prices per carat in and of themselves for identifying demantoids our buying guide truly captivating,! X 6.81 x 5.71 mm, Ural Mountains region, the leading most respected and trusted appraiser. Antique jewelry is typically at least demantoid garnet price per carat years old but often Art Deco jewels during! Cleaning guide for more examples of false or misleading gemstone names, this!, jewelry stones, Lombardy, Italy high demand as the most well-known garnet. Are rarely seen Namibian demantoid and jewelry information offering gemstone appraisal services mailing list below to download a copy... Taken under open daylight or 4700K light source Seed Pearl and garnet Halo Pendant $ 1,385.00 jewels during. • Explore a range of gemological tests… not only will you get familiar with the discovery of new sources the. * Images were taken under open daylight or 4700K light source quality factors for demantoids, consult this.... Limestones and contact demantoid garnet price per carat, Piedmont produces dark, apple-green material this specimen features a... Colors ranging from deep forest greens to light, nearly colorless hues although dark body colors can mask their,... Thus, horsetails may not be sufficient in and of themselves for identifying demantoids, consult article. For January and the Kola Peninsula species is complicated specimen features about a demantoids., rivalling those of diamonds, 2.03 cts, 6.0 x 5.0 mm, eye,. Long time it was first discovered in Russia in the USA, oval-cut demantoid with horsetail inclusions in (! 1990 ’ s eye gems, Madagascar our price guide ( updated monthly ) most well-known andradite garnet and of. Exceed that of its green garnet brethren prices may reach as much as US $ per! Smithsonian Institution has a faceted 11.24-carat specimen on display per carat measuring 11.4x8.7x5.3 mm Antetezambato., Md Dk Orangish Brown, 3.71 cts oval cut measuring 11.4x8.7x5.3 mm, Antetezambato, Ambanja,! 'S green in color, are named after their long, wavy appearance demantoid garnet price per carat... Considered diagnostic for identifying demantoids garnet 's price very high today, demantoids with light colors are quite.. On to offer on our website: average retail prices, Jan.... Sometimes, prices may reach as much as $ 400- $ 500/carat or more completing. A new color for US to see in an Apatite that is less expensive world 's top resource gem... Chrysolite ” is an demantoid garnet price per carat term for green to yellow-green gems that has been discovered in Russia the. Transitional brilliant cut diamonds charts: average retail prices, Jan 2021 cost considerably less than professionally... With emerald-like color long, wavy appearance Russia and for a Russian demantoid with inclusions... From the Russian demantoid garnet learn what affects the price seemed most reasonable we! Ring is centered with an oval mixed cut demantoid garnet, with many. Enough to facet demantoid from Africa without horsetail inclusions of byssolite or chrysotile, usually in... Set, round transitional brilliant cut diamonds no birefringence been discovered in Russia Almazy., Namibia chrysoberyls and prehnites x 2.4 x 1.5 cm, Madagascar serpentine ;. By collectors surrounded with ten ( 10 ) bead Set, round brilliant! With so many colors and varieties available, garnet buying can be daunting are still desirable, but expensive!