This is an authentic Roberto Coin 18K Yellow Gold Diamond Small Venetian Princess Heart Medallion Charm Necklace. The necklace is crafted of 18 karat yellow gold and features a delicate chain holding a heart shaped pendant accented with diamonds, approximately .26 total carat weight. The necklace also features a synthetic ruby on a tag near the clasp. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.