This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Tiny Palazzo Ducale Satin Tile 3-Station Necklace. The necklace is crafted of 18 karat yellow gold and features three tile stations accented with round cut diamonds weighing approximately .03 total carat weight. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.