18ct White gold Tanzanite and Diamond cushion drop necklace. This necklace is made up of an 18ct white gold claw mount, set with a cushion cut Tanzanite surrounded by pave set diamonds and bail. The item comes complete with the 18ct white gold chain. The central stone measures 10mm x 10mm and the pendant itself measures 29mm in length and 14mm in width at its widest point. Trilliant Cut Tanzanite 3.85ct, Diamonds 0.36ct PD01-18WH-032-PW0475TZ.