Sterling Silver, Aquamarine, Swiss Blue Topaz, and Diamond Twist Ring (1/10 cttw, I-J Color, I3 Clarity) Sterling silver ring featuring oval aquamarine centerpiece mounted on twisted shank set with blue topaz and diamond rounds The natural properties and composition of mined gemstones define the unique beauty of each piece. The image may show slight differences to the actual stone in color and texture. Gemstones may have been treated to improve their appearance or durability and may require special care. All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free. The total diamond carat weight listed is approximate. Variances may be up to .03 carats. Imported All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict-free.