The numbers 750 stamped on jewelry means that it is 18-karat gold. The jewelry piece is 18 parts pure gold and six parts metal alloy. More »

Gold stamped "925" is probably gold-plated sterling silver. The "925" is part of a precious metals hallmark system, but only silver is denoted "925," or 92.5 percent, pure. More »

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Sarah Coventry vintage jewelry is a line of jewelry that was popular in the 1950s and 1960s. It was produced by the Emmons Company and sold at home jewelry parties. Sarah Coventry jewelry is no longer manufactured, but v... More »

The term "diamond solitaire" refers to an item of jewelry that highlights a single diamond, according to the Gem Institute of America. The single stone is set in a prominent mounting to accent the diamond's positive attr... More »

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Businesses that sell antique and vintage costume jewelry include Etsy, Enchantment Vintage Costume Jewelry and 1stdibs. Etsy features the broadest selection, with thousands of listings as of December 2015. More »

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A piece of vintage Napier jewelry is typically valued at between $5 and $50, as of 2015. Especially rare pieces or those made from precious metals may sell for slightly higher prices. More »

Holsted Jewelers sells fashion jewelry and accessories for women, such as rings, earrings, necklaces, bracelets and jewelry sets. Jewelry is also available for each month's birthstone and many other precious gemstones. A... More »

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