Gorgeous Tiffany & Co Elsa Peretti Vintage 18K Yellow Gold 18.2 X 11.9 MM Bean Necklace. This stunning necklace measures 16 inches long and weighs 6.2 grams. The bean is engraved: TIFFANY & CO 18K 750 PERETTI. It is fully engraved: TIFFANY & CO PERETTI 750 at the clasp. It is in excellent condition. It comes in its Tiffany box and presentation case. Please visit my ebay store for unique estate jewelry. Thank you.