This is an authentic ROBERTO COIN 18K White Gold Diamond Blue Sapphire Large Princess Flower Pendant Necklace. The necklace is crafted of 18 karat white gold and features a flower motif pendant adorned with marquise cut blue sapphires and round brilliant cut diamonds, approximately 1.23 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.