Deals in all natural stones, no clarity enhancement of any kind. We supply industry professionals and private clients around the world with premium quality gemstones and fine jewelry. We are partnered with some of the finest suppliers in the world. Gem Quality Faceted Transparent Prismatine is essentially non existent in this size and quality save except this incredible 1.81 Carat with great color, cut and clarity - I largest known, an incredible 6.58ct resides in my collection as well. This Round Brilliant Cut was mined in Tanzania and stands alone as the world's 2nd finest and 2nd most important Prismatine known to exist.This discovery of this rare type is new enough that it trades outside the scope of the worlds most rarest and valuable gems top 10 and top 20's etc lists. The story behind this green gem began 2007 in the Tanzanian Usambara Mountains. There, a few green crystals were found, displaying a hardness of 6.5 to 7, and were initially thought to consist of the collector gemstone Kornerupine.
The chemical composition proved to be similar indeed, but it was not Kornerupine. Instead, this new material also contained the element boron, allowing it to be identified as the species Prismatine § a rock known since 1866, but never found as gemstones, and never in green.It turned out the green colour was due to impurities of vanadium. The stone comes with GIA report# 5171253787. Only the 2nd ever Prismatine to be GIA certified (September 10, 2015). The video & images shown below are of the actual stone. Video will open in a new window.
We are active members of key international gem trading networks and are well studied in lab certified 100% natural, untreated, earth mined diamonds, emeralds, rubies, sapphires and precious metals. Gem of a Diamond is wholly owned by The Monetary Man Incorporated. Dunn & Bradstreet DUNS# 246858737. We guarantee our gemstones and jewelry to be as described. The item "Utmost Rarity 1.81ct Prismatine.Only 2 ever GIA Certified" is in sale since Friday, March 17, 2017. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Kornerupine". The seller is "themonetaryman" and is located in Moncton, New Brunswick. This item can be shipped worldwide.