Sterling Silver Diamond Heart Pendant Necklace (1/6 cttw, I-J Color, I2-I3 Clarity), 18" This beautiful heirloom-inspired necklace evokes a romantic vibe with a delicate filigree heart pendant suspended from a slim ladylike chain. .925 sterling silver rolo chain with lobster-claw 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.