This is an authentic ROBERTO COIN 18K White Gold Diamond Ruby Princess Flower Pendant Necklace. The necklace is crafted of 18 karat white gold and features a flower motif pendant adorned with marquise cut rubies and round brilliant cut diamonds, approximately .50 total carat weight. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.