18ct White Gold 1.65ct Tanzanite 0.43 Carat Diamond Cluster Necklace. MP00011. Our Tanzanite collection showcases one of the world's most desired stones, considered a thousand times rarer than the diamond. This seductive gemstone can exhibit a variety of surreal colours including blues, violets and burgundies so each piece is truly unique and beautiful. An embodiment of luxury and elegance, this breathtaking necklace showcases a brilliant cut 1.65 carat Tanzanite set into beautifully contrasting 18ct white gold. The pendant is further embellished and framed by 20 glittering brilliant cut diamonds. The bail is also diamond set, giving a total weight of 0.43 carats. The pendant is sold complete with a fluid 18 inch long 18 carat white gold chain, which fastens with and easy to open and close bolt ring style fastener. At C W Sellors, 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 compliment this necklace. 18ct White Gold 1.65ct Tanzanite 0.43 Carat Diamond Cluster Necklace. Tanzanite 7x7mm, 13x13mm including diamond frame, drop including bail 24mm.