This is an authentic Roberto Coin 18K White Gold Diamond Tiny Treasures Starfish Pendant Necklace. The necklace is crafted of 18 karat white gold and features a starfish motif adorned with round brilliant cut diamonds weighing approximately .09 total carat weight. The necklace also features a synthetic ruby on the back of the pendant. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.