Item #: 1323428 This is an authentic TIFFANY Sterling Silver Diamond Envelope Pendant Necklace. The necklace is crafted of sterling silver and features an envelope addressed to Tiffany's iconic New York storefront set with a single round brilliant cut diamond weighing approximately .02 carat. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.