This is an authentic ROBERTO COIN 18K White Gold Diamond Fantasia Big Flower Pendant Necklace. The necklace is crafted of 18 karat white gold and features a flower motif pendant set with diamonds, approximately .45 total carat weight. The necklace also features a synthetic ruby. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.