Vintage Tiffany & Co Sterling Silver Blue Favrile Glass Scarab Screw On Earrings. These stunning iridescent blue earrings are in excellent condition. They measure .71 inch x .46 inch and weigh 3.6 grams. Fully engraved: TIFFANY & CO 925 on the back of each scarab earring. Screw on backs have been added. They come in their Tiffany pouch and box. Please visit my ebay for unique estate jewelry. Thank  you.