Unique 6mm Each 2.00 Carat Total Weight Sterling Silver Black Cubic Zirconia Stud Earrings. 1.00 Carat Each Stone 2.00 Carat Round Cubic Zirconia 1.00 Carat Each Stones 925 Sterling Silver Stud Earrings. Perfeclty Matched Pair High quality cubic zirconia black stones AAAAA Black Cubic Zirconia Includes Push backs