Lab-Grown Diamond Stud Earrings in Hypoallergenic 925 Sterling Silver, Screw Back, 4 Prong, G-H Color, SI Clarity Multiple Size Options: 1/5, 2/7, 1/2, 3/4, 1, 2 1/2 Cttw Multiple Cut Options: Round / Princess / Cushion Cut Multiple Color Options: 14k White Gold or 14k Yellow Gold Plated Color.