18ct White Gold 1.31ct Tanzanite Claw Set Curved Triangle Stud Earrings. TS1055E. Tanzanite is the blue/violet variety of the mineral Zoisite, discovered in the Mererani Hills of Northern Tanzania. The Tanzanite collection showcases one of the world\'s most desired stones that is considered a thousand times rarer than the diamond. These elegant 18ct white gold, 1.31ct Tanzanite earrings are part of our Tanzanite collection. Featuring a gorgeous curved triangle shaped Tanzanite claw set into exquisite 18ct white gold setting, complete with a butterfly and post fastening. All articles are lovingly and securely dispatched with our elegant jewellery packaging. Matching items also available within this collection.