How to Authenticate Vintage Tiffany Jewelry

By following a few simple guidelines, you can easily authenticate vintage Tiffany jewelry before you buy. Founded in 1837, Tiffany & Co. has adhered to the highest standards in gemstone selection, craftsmanship, and branding. To authenticate vintage Tiffany jewelry, look first for certifications. Then inspect the Tiffany blue box or pouch, and any accompanying paperwork. Next, scrutinize the craftsmanship of the piece. Finally, look for a few distinctive characteristics.Certificates & The Tiffany Blue BoxBefore you buy a vintage Tiffany piece, ask the dealer or jeweler to show you all certificates from reputable gemological labs. Such labs include the Gemological Institute of America (GIA), the American Gemological Society (AGS), the European Gemological Laboratory (EGL), and the International Gemological Institute (IGI).If one of these labs, especially the GIA or the AGS, confirms maker's marks or authenticates the presence of a Tiffany diamond or gemstone in the piece, you can rely o...