Black Diamond Stud Earrings in Sterling Silver .925 Sterling Silver STONE - Black-Diamond, 0.29 CTTW. Item Width: - 2.5 MM ; Item Length - 2.5 MM 0.33 CTTW. Black diamonds have been heat treated to improve their appearance or durability. Back Finding: Post-With-Friction-Back Stone Clarity: I3 ; Stone Color: Black Jewelry Gift Box Included You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!