White Gold 18kt Tiny Treasures 0.18 ct Diamond HAMSA Necklace by Roberto Coin. The item "White Gold 18kt Tiny Treasures 0.18 ct Diamond HAMSA Necklace by Roberto Coin" is in sale since Sunday, May 26, 2019. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Necklaces & Pendants\Diamond". The seller is "bkaileh" and is located in San Bruno, California. This item can be shipped to United States.