18kt yellow gold/sterling silver polished finish multi-band design twist detailing pavé setting round cut diamonds totalling 0.22 to 0.27 carats (dependent on size) 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.