I love finding old vintage antique jewelry at estate sales, yard sales and on eBay. When shopping online for vintage jewelry it is best to shop from reputable well known websites such as Ruby Lane, Tias, Tocadero, and shop goodwill. Vintage jewelry from different era's are really old gems, many pieces are intricate with the art nouveau period, and art deco era from 1920s to 1940s. Design is very streamlined, bold and geometric in design. There are many different periods of jewelry designs in history, a lot of times the jewelry will tell its age because of the design and the wear on it. Beware of fakes on the market from China; it is better to shop on well known online antique shops, not the auction sites. On auction sites there is a small risk of jewelry being reproductions; if purchasing for only private collection it would be risky but okay. If you are purchasing vintage jewelry as a reseller than the jewelry should be verified as original piece regardless of price.