Ships within 1 day. Lovely, elegant princess cut black diamond wedding band .925 sterling silver with rhodium plating. The sparkling natural 1/3 cttw princess shape black diamonds are heat treated. The width of the ring is 3 mm. The ring is made of 11 diamonds set in channel setting. Gift box is included with purchase of this ring. Stone Type - Natural Black Diamond. Metal - 925 Sterling Silver. Number of Diamonds - 11. Diamond Cut - Princess. Diamond Carat Weight - 1/3 cttw (0.33 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.