MYSTIC TOPAZ AND DIAMOND RING: 14K yellow gold ring contains one checkerboard cut ''mystic'' topaz. WEIGHT: 3.00 Ct. Approx. 20 round single cut diamonds. WEIGHT: .10 Ct. Approx. Rated SI in clarity and H-I in color. The topaz and diamonds are prong set. Weight: 2.8 grams. Size: 6