C. 1990. Expect all eyes on you when your wear this bright cocktail ring from our Estate collection. In platinum, 1.90 ct. t.w. of round brilliant-cut diamonds cluster with 1.90 ct. t.w. of sapphire rounds. Diamond and blue sapphire ring. <b>Exclusive, one-of-a-kind Estate Jewelry.</b> Free shipping & easy 30-day returns. Fabulous jewelry. Great prices. Since 1952.