This is an authentic TIFFANY 18K Yellow Gold Diamond Envelope Charm. This beautiful pendant is crafted of 18 karat yellow gold and features an envelope addressed to Tiffany's iconic New York storefront, and set with a single diamond weighing approximately .02 carats. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.