This striking sterling silver necklace from Effy® features a bold, cushion-cut onyx stone with a diamond in each corner and an oxidized finish. 4 Diamonds, 1 Onyx Lobster closure Color rating: H, I Clarity rating: I1-I2 Oxidized finish Prong setting Warranty available Imported Product Specifications 18" L 1/10 ct. t.w. diamond, 3.7 ct. t.w. onyx Material & Care Sterling silver Clean with a soft cloth