1 CT. SEMI-CRYSTAL OPAL RING: 14K yellow gold ring with one oval cabochon cut opal. Weight: Approx. 1.00 Ct. Body color: Gray. Play-of-color: Blue/Green. Brightness level: 3.5 Pattern: Harlequin. The opal is bezel set. Weight: 2.7 grams. Size: 7