This is an authentic ROBERTO COIN 18K Yellow Gold Diamond By the Inch Five Station Bracelet. The bracelet is crafted of 18 karat yellow gold and features bezel-set round brilliant cut diamonds weighing approximately .25 total carat weight, as well as the signature ruby stone set on the tag. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.