This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Tiny Treasures Heart Medallion Pendant Necklace. The pendant is crafted of 18 karat yellow gold and features a brushed-finish round heart motif accented with round brilliant cut diamonds, approximately .05 total carat weight. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.