Product Specifications. Therefore, the shape of cut for demantoid, as a rule, diamond, allowing to maximize his game. Garnets come from many different regions and countries. The [5.42 ct Santa Maria] Aquamarine is beautiful and I am happy with its quality, thx! This means that like a Diamond, the Demantoid Garnet shows a beautiful spectrum of colours when the light bounces through the stone. Beautiful Aquamarine, happy with its quality! Live TV Presentation . Demantoid garnets were first discovered in 1853 in Russia’s Ural Mountains on the western coast. Details. Most demantoid specimens on the market are small - gemstones larger than 10 cts are very rare. Details. Said to have originated in Russia, that is a possibility but we feel it is most likely from the new find in Madagascar. Currently the most prolific production of gem garnet is from East Africa. Another interesting trait about demantoid is that some contain highly sought-after horsetail inclusions. Thanks so much for following up. Product Weight (grams) 5.630 . Mint grossular garnet is also known as mint garnet and, sometimes, Merelani mint garnet — named for being discovered in Tanzania’s Merelani Hills. This rare garnet was first discovered in the Ural Mountains in Russian in 1886, and was named demantoid for its diamond-like luster. The hardness of garnets makes them useful as an abrasive. -- CP, Hong Kong, Dec 2020, Hello Ron, the Kunzite pendant arrived already today. Demantoid Garnet is the rarest of all the garnet varieties, and is valued by collectors for its exceptional brilliance and fire. Though demantoid garnet has been found in other locations, notably Namibia and Madagascar, the quality of the top Russian material is far superior. The most valuable garnet, however, is the demantoid variety of andradite, a brilliant green mineral that was once mined in Russia's Ural Mountains. Where is Garnet Found? Demantoid mining in Russia has resumed in just the last 20 years. What Colors Can Demantoid Garnet Be Found In? A favorite of the Czar's court, demantoid was ano~her victim of the 191 7 Bolshevik Revolution, when mining of this and other Russian gems was halted. Demantoid garnet was first discovered in Russia in the mid-1800s in the famous Ural Mountains. There have been reports of Namibian Demantoid Garnet shifting colour from green to yellow in different lighting. A famous Scottish geologist, Campbell R. Bridges, discovered it in 1967 in Tanzania. mr pezzotta and mr lorenzoni hunting demantoid garnet crystals in a new location in madagascar discovere in 2009 Demantoid garnet has been found in areas such as Russia, Italy, Iran, the USA and Namibia. Miners were immediately stunned by the highly refractive nature of the gem material, which is atypical for garnet. Garnet Color Range. The garnet known as grossularite is typically golden green, yellow-green or olive-green. Notable for is dispersion, this stone sparkles unlike most other gems and … In the market, demantoids are found mainly as round brilliant or cushion cuts. Considered the rarest and most valuable of all garnets, Demantoid Garnet, is a green variety originally discovered in the late 19th century in Russia near the Ural Mountains. Highly sought after Horsetail Inclusion, indicating Russian origin . Demantoid garnets are a member of the andradite variety of garnets. It has an unusually high refractive index, higher than ruby and sapphire, and this is one of the reasons for its impressive brilliance. Small quantities were also found in Germany, Italy, Switzerland, Zaïre and the United States. Garnet is also found in the rocks of contact metamorphism, subsurface magma chambers, lava flows, deep-source volcanic eruptions, and the soils and sediments formed when garnet-bearing rocks are weathered and eroded. Aquamarine. A Demantoid Garnet with a “horse tail” inclusion is highly sought after by collectors and will command an extremely high price. Remarkably, demantoid garnet boasts a higher dispersion rate than diamond. A god cutter will place this crystal down at the bottom of the stone making the horse tail inclusion radiate up towards the top of the stone. It is very beautiful! These are known as horsetail inclusions and are found demantoid garnets that come from Russia. Since the Russian demantoid is so rare and valuable, a distinguishing feature of these gems has become known to every gem collector. Mint Green Garnet. The Karkodino mine produces highly saturated greens but with a very dark tone. It is highly esteemed on account of its rarity coupled with that incredible luminosity. The Russian demantoid is colored by chromium and tends to be a pure vivid green. Said to have originated in Russia, that is a possibility but we feel it is most likely from the new find in Madagascar. 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