14K OPAL & DIAMOND RING: 14K yellow gold ring contains 16 round brilliant cut diamonds. WEIGHT: .50 Ct. Approx. Rated SI in clarity and H-I in color. One oval cabochon crystal opal. WEIGHT: 1.25 Ct. Approx. Blue/green play-of-color. No cracks or crazing. The diamonds and opal are prong set. Weight: 4.7 grams. Size: 7