This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Small Venetian Princess Flower Ring 51 5.75. The ring is crafted of 18 karat yellow gold and features a flower motif set with approximately .04 total carat weight of diamonds, along with a synthetic ruby on the inside of the band. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.