Sterling Silver and Diamond Square Pendant Necklace (1/4 cttw, IJ Color, I2-I3 Clarity), 18" Sterling silver necklace featuring angled square pendant studded with nine round-cut diamonds Cable chain with spring-ring clasp All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free. Imported Carat weight listed is the total for all stones.