This is an authentic ROBERTO COIN 18K Rose Gold Diamond Circle Pendant Necklace. The necklace is crafted of 18 karat rose gold chain and features a stunning circular pendant in 18 karat rose gold set with sparkling diamonds approximately 1.55 total carat weight. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.