CUSTOM 15 CT OPAL AND DIAMOND PENDANT: 14K yellow gold pendant contains one oval cabochon cut opal. Weight: 15.00 Ct. Approx. The opal has white body color with blue/green and red/orange play-of-color. Brightness level: 2.5 One round full cut diamond. Weight: .025 Ct. Approx. The opal is bezel set. The diamond is prong set. Mounting weight: 9.8 grams approx.