Ships within 1 day. Elegant black diamond ring .925 sterling silver with black rhodium plating. The sparkling 0.33 cttw round shape black diamonds are natural and heat treated. The black diamonds are surrounded by white diamond accent stones. The width of the ring is 12 mm. Gift box is included with purchase of this ring. Stone Type - Natural Black Diamond ; White Diamond. Metal - 925 Sterling Silver. Diamond Carat Weight - 0.33 cttw. Diamond Cut - Round. Diamond Color - Black ; I-J. Diamond Clarity - I3. Vir Jewels Sterling Silver Statement Ring For Female Adult. Birthstone Month - April. Black diamonds have been heat treated to improve their appearance or durability.