This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Tiny Treasures Mini Cross Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a cross motif set with round brilliant cut diamonds, weighing approximately .20 carat, 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.