This is an authentic ROBERTO COIN 18K White Gold Diamond Byzantine Barocco Bangle Bracelet. The bracelet is crafted of 18 karat white gold and features a rounded square bangle set with diamonds along the top half, approximately 1.00 total carat weight, along with 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.