14K BLUE TOPAZ & DIAMOND RING: 14K white gold ring contains one round fantasy-cut blue topaz. Weight: approx. 5.00 Ct. 18 round single-cut diamonds. Weight: approx. .18 Ct. Rated SI in clarity and H-I in color. The topaz and diamonds are prong set. Total weight: 6.9 grams. Size: 7.