2.5 CT AMETHYST WITH BLUE TOPAZ RING: 14K yellow gold ring centers an emerald cut amethyst. Weight: 2.50 Ct. Approx. The amethyst is flanked by 2 emerald cut topaz. Weight: 2.50 Ct. Approx. The gemstones are prong set. Weight: 3.5 grams. Size: 7