18kt yellow gold and sterling silver Elements Eclipse diamond pendant necklace from DAVID YURMAN featuring sterling silver, 18kt yellow gold, lobster claw fastening, adjustable sliding fastening, circular pendant, onyx, mother-of-pearl, round cut diamonds, engraved logo and signature Cable motif design. 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..