This sterling silver ring features a combined 2.33 ct. t.w. amethyst and tanzanite with 0.06 ct. t.w. diamond accent and measures 15.80-mm. x 12.50-mm. Almost all gemstones have been treated to enhance their color and require special care. Prong setting 1 Amethyst, 16 Tanzanite, 12 Diamonds Color G-H-I Clarity I2-I3 Imported Care Clean with a soft bristle brush and warm soapy water. Use silver polishing cloth on silver items.