14K OPAL, TANZANITE AND DIAMOND RING: 14K white gold ring contains one oval cabochon cut opal. WEIGHT: .50 Ct. Approx. Blue/Green play-of-color. Two triangle shaped tanzanite. WEIGHT: .25 Ct. Approx. Four round brilliant cut diamonds. WEIGHT: .06 Ct. Approx. The gemstones are prong set. Weight: 3.0 grams. Size: 6