18kt yellow gold polished finish twist detailing claw/prong setting 12mm 5.42ct blue topaz stone Please note that the chain pictured is not included with this item. 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. 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.