18ct White Gold Tanzanite and Diamond Pendant. This statement pendant is set with a beautiful quality 1.19ct trillion cut tanzanite, surrounded by a slim halo of brill cut diamonds and suspended by a hidden bale from an 18″ 18ct white gold curb chain, by a hidden bale that runs smoothly behind the setting. Below the tanzanite is an articulated diamond set drop that echo’s the trillion shape, elongating the pendant. Hallmarked 750, 18ct white gold, the combined total diamond weight for the piece is 0.32cts.