This is an authentic ROBERTO COIN 18K Yellow White Gold Diamond Cento Bridal Pendant Necklace. The necklace is crafted of 18 karat yellow and white gold, and features a round pendant accented with a single round brilliant cut diamond, approximately .25 total carat weight, G color, and VS1 clarity, along two synthetic rubies. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.