Item #: 1821299 This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Tiny Treasures Circle Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a circle motif adorned with round brilliant cut diamonds weighing approximately .09 total carat weight, along with a synthetic ruby on the back. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.