This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Bean Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a bean motif pendant with a bezel-set round brilliant cut diamond, approximately .17 carat, and a synthetic ruby on the back. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.