18kt yellow gold Ayut Al Kursi Big necklace18kt yellow gold brushed finish delicate chain oversize pendant claw prong set marquise cut emeralds bezel set marquise cut and round cut white diamonds claw prong set round cut sapphires and rubies engraved detail 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.