The iconic Van Cleef & Arpels 18k White Gold Vintage Alhambra Chalcedony Pendant Necklace. The Van Cleef & Arpels necklace is made of 18k white gold and the chain holds a single Alhambra motif inlaid with chalcedony. Metal: 18k white gold (Weight is 5.4g) Gemstone: 1 Chalcedony Motif Size: 15mm …