UNIQUE AMETHYST, DIAMOND & 18K GOLD & STERLING FROG BROOCH: 18K rose and yellow gold with sterling silver brooch contains one 10.00 Ct. oval amethyst. 35 irregular shaped rose cut diamonds. WEIGHT: 1.00 Ct. Approx. Rated SI in clarity and H-I in color. Two faceted red stones of unknown origin. Bar pin closure. Weight: 27.4 grams. Measures 1.5'' x 2.5'' at widest points.