sterling silver/18kt yellow gold polished finish cable-link chain twist detailing toggle pendant pavé-set round-cut diamonds totalling 0.05 carats lobster claw fastening Normal everyday use and external agents may reduce the lustre of gemstones and gold surfaces. To maintain, use specific, non-abrasive products specially meant for cleaning jewellery. 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.