This is an authentic ROBERTO COIN 18K Rose Gold Diamond Onyx Primavera Coil Bracelet. The bracelet is crafted of 18 karat rose gold, and features a flexible mesh wrap-around bangle set with black onyx stones and diamond accents weighing approximately .24 total carat weight. The bracelet also features a synthetic ruby on the inside. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.