This is an authentic ROBERTO COIN 18K White Gold Diamond Tiny Treasures Heart Pendant Necklace. The necklace is crafted of 18 karat white gold and features a heart motif pendant pave-set with round brilliant cut diamonds, approximately .18 total carat weight, along with 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.