New Authentic Tiny Treasures Diamond Baby Cross Necklace by Roberto Coin 18k. ROBERTO COIN BABY CROSS. STONES: 6 Round Diamonds, 1 Round Ruby on the back. CONDITION: New but being handled. Necklace measures 18. Necklace weighs 2.2 grams. Total diamond weight is. Roberto Coin stamp on Cross. The item “Roberto Coin Tiny Treasures Diamond Baby…