This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Tiny Treasures Love Letter N Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a letter N pendant set with diamonds, approximately .07 carats. The necklace also features the signature ruby set on the backside of the pendant. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.