18kt yellow gold Vintage Alhambra carnelian necklace from VAN CLEEF & ARPELS featuring 18kt yellow gold, polished finish, delicate chain, signature Lucky Four Leaf Clover motif, carnelian and lobster claw 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..