18ct White Gold 1.15ct Tanzanite Trilliant Cut Necklace, TS1055P This elegant 18ct white gold necklace, features a claw set trillion cut piece of Tanzanite gemstone totaling 1.15cts. Presented on an 18 inch 18ct white gold chain. A perfect gift for someone special.  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.  We have an expert team of gemstone and diamond specialists who handpick and grade each jewel to meet our high standards and a team of talented in house designers who combine their talents to bring you our exclusive Precious Gemstone collection. You can find other Tanzanite pieces online and in store to complement this necklace. All articles are lovingly and securely dispatched with our elegant jewellery packaging.