Antique "Round Brilliant" Diamond, Platinum RingThe handmade finely millegrained platinum ring is designed as an elegant cascading of garland motifs embellished with sixteen Old European cut diamonds, highlighting a central Round Brilliant diamond weighing 2. 67 cts., hand cut in the Old European style with voluptuous faceting, circa 1920. G. I. A. Report #5171441581. G. I. A. Report #5171441581. (click to view)