This is an authentic ROBERTO COIN 18K Yellow White Gold Diamond Large Princess Flower Pendant Necklace. The necklace is crafted of 18 karat yellow and white gold, and features a flower motif pendant pave-set with diamonds, approximately .45 total carat weight, along with a 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.