Ships within 1 day. Lovely black diamond solitaire engagement ring in .925 sterling silver with rhodium plating. The sparkling natural 2 cttw round black diamond is heat treated and set in a prong setting. The width of the ring is 7 mm. The ring is available in multiple sizes. Gift box is included with purchase of this ring. Stone Type - Natural Black Diamond. Metal - 925 Sterling Silver. Number of Diamonds - 1. Diamond Cut - Round. Total Diamond Carat Weight - 2 cttw. Diamond Clarity - I1-I2. Vir Jewels Sterling Silver Statement Ring For Female Adult. Birthstone Month - April. Black diamonds have been heat treated to improve their appearance or durability.