18kt yellow gold sterling silver polished finish sapphire blue white diamond black sapphire pavé setting dragon-head motif slip-on style 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. Material:Black Sapphire/Sterling Silver/White Diamond/Blue Sapphire/18kt Yellow Gold. Colour: black