18kt yellow gold and sterling silver petite Châtelaine peridot and diamond pendant necklace from DAVID YURMAN featuring 18kt yellow gold, pavé-set diamonds, peridot, cable-link chain, lobster claw fastening and adjustable fit. To ensure the shine and polish of your David Yurman piece, wash with a little non-bleach, soapy water and wipe clean with a soft cloth..