Year: 2007 This is an authentic ROBERTO COIN 18K White Gold Diamond Tiny Treasures Baby Cross Pendant Necklace. The necklace is crafted of 18 karat white gold and features a small cross motif adorned with round brilliant cut diamonds, approximately .11 total carat weight. The necklace also features the hidden signature synthetic ruby stone at 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.