18kt yellow gold polished finish twist detailing decorative buckle detail pavé setting round cut diamonds totalling 0.39 carats hinge clasp 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.