This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Love Letter I Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a letter 'R' motif pendant set with round brilliant cut diamonds, approximately .06 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.