This is an authentic ROBERTO COIN 18K Yellow Gold Diamond New Barocco Station Necklace. The necklace is crafted of 18 karat yellow gold and features a chain holding stations set with round brilliant cut diamonds, approximately .36 total carat weight, along with the signature synthetic ruby on the chain tag. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.