This is an authentic ROBERTO COIN 18K White Gold Diamond .92ct Cento Solitaire Pendant Necklace. The necklace is crafted of 18 karat white gold and features a round cut diamond secured in a three prong setting and weighs .92 carats with SI1 clarity and G color. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.