This is an authentic ROBERTO COIN 18K Yellow Gold Diamond By the Inch Five Station Flower Necklace. The necklace is crafted of 18 karat yellow gold and features a delicate chain with five flower stations of round brilliant cut diamonds weighing approximately .48 total carat weight. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.