This is an authentic ROBERTO COIN 18K White Gold Diamond Yellow Sapphire Daisy Pendant Necklace. The necklace is crafted of 18 karat white gold and features a daisy flower motif pave-set with yellow sapphires and approximately .48 total carat weight of diamonds, along with a hidden synthetic ruby. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.