How to identify vintage jewelry

Look for hallmarks and signatures

Inspect clasps, earring posts, ring shanks, brooch backs, and pendant bails with a loupe. A hallmark may indicate metal content, a maker, a country, or an assay office. Photograph it at high resolution; even partial lettering can be useful.

Study clasps and findings

Clasps, hinges, pin backs, and earring mechanisms evolved over time. They help suggest an era, but repairs and replacement findings are common. Look for evidence that the construction is consistent across the piece.

Identify materials carefully

Color and a magnet are not reliable ways to establish precious-metal content. Glass, paste, rhinestones, natural gems, and synthetic stones can look similar in photos. Do not use destructive tests or chemicals on an item you may value.

Check style against construction

Art Deco geometry, mid-century motifs, and retro color combinations can be useful starting points. However, styles return. A design should agree with its metalwork, fastening method, wear patterns, and documented maker history.

Document condition before selling

Record missing stones, plating wear, bent pins, repairs, dimensions, and weight when known. These details heavily affect resale value. For items believed to contain fine gemstones or precious metals, obtain a professional assessment.