This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Pave Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a stationary round pendant set with .28 total carat weight of diamonds along with a synthetic ruby on the back of the pendant. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.