This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Symphony Diamond Bangle Bracelet. The bracelet is crafted of 18 karat yellow gold and features a a lightweight bangle set with round brilliant cut diamonds, approximately .61 total carat weight, and the signature synthetic ruby inside the bracelet. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.