This is an authentic VAN CLEEF & ARPELS 18K Rose Gold Diamond Pink Porcelain Vintage Alhambra Pendant Necklace. The necklace is crafted of 18 karat rose gold and features the signature Alhambra clover motif set with pink porcelain and a single round brilliant cut diamond, approximately .05 carat. PLEASE NOTE: This piece has a clasp that is no longer in production.