This is an authentic ROBERTO COIN 18K Rose Gold Diamond Turquoise Art Deco Ring 54 6.75. The ring is crafted of 18 karat rose gold and features a band set with turquoise and diamonds, approximately .60 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.