Antique Jewelry University

Although not actually a university, this website has a lot of great educational information about antique, vintage, and estate jewelry. The site's highlights include a beautiful high resolution image gallery and an encyclopedia showcasing rings, necklaces, earrings, brooches, pins, bracelets, and more from the Georgian, Art Nouveau, Arts and Crafts, Victorian, Neoclassial, and Retro periods. The site also touches on other relevant topics, such as art history, hallmarks, watches, and gemology.