This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Venetian Princess Flower Disc Pendant. The pendant is crafted of 18 karat yellow gold and features a round disc with a cut-out flower motif, set with approximately .03 total carat weight. The pendant also features a synthetic ruby on the back. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.