This is an authentic ROBERTO COIN 18K Yellow White Gold Diamond DogBone Chain Station Bracelet. The bracelet is crafted of 18 karat yellow gold and features four bezel-set round brilliant cut diamonds weighing approximately .16 total carat weight, along with a synthetic ruby on the chain tag. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.