SIGNED TIFFANY & CO. PLATINUM, TANZANITE AND DIAMOND PENDANT ON CHAIN. Oval tanzanite weighing 1.19 ct., surrounded by 12 matched brilliant-cut round diamonds; pendant loop set with two additional round diamonds; suspended on delicate pendant chain. New, with original stamped suede case and blue Tiffany & Co. box accompanied by Tiffany & Co. appraisal certificate, March 1997. - Chain measures app. 15 1/2 in. Pendant size: app. 1/2 in. high, app. 3/4 in including loop. Estimate $1,200-1,800