How to Value Antique & Vintage Jewelry

Antique and vintage jewelry can be one of the most valuable categories in an estate — or nearly costume. The difference comes down to materials (real gold, platinum, and gemstones vs. plated and glass), the era and style, the maker, and condition. Here's how to figure out what old jewelry is actually worth before you sell.

First: antique, vintage, or costume?

"Antique" jewelry is generally 100+ years old; "vintage" is roughly 20–99 years; "costume" is fashion jewelry made from non-precious materials of any age. Costume jewelry can still have collector value if it's by a sought-after maker, but most value lives in precious metals and real gemstones. For the age terms, see antique vs vintage vs retro.

The factors that set value

Materials. Real gold (look for karat marks like 10K, 14K, 18K, 750), platinum (PLAT, 950), and sterling silver (925) have intrinsic metal value; genuine diamonds and colored gemstones add more. Plated or base-metal pieces are worth far less.

Era and style. Georgian, Victorian, Art Nouveau, Edwardian, Art Deco, and Retro periods each have distinctive styles and collector demand. Art Deco and signed period pieces are especially sought after.

Maker / signature. A signature from a prestigious house or a known designer can multiply value dramatically. Look for maker's marks and hallmarks.

Craftsmanship and gemstones. Hand-fabrication, old-cut stones (old mine and European cuts), and fine detailing add value that mass production doesn't.

Condition. Original condition matters; damage, poor repairs, and replaced stones reduce value.

How to research it yourself

Look for hallmarks and karat stamps (often on clasps, ring shanks, and earring posts) to identify metal. Note the style and any signature. Then look at sold prices for comparable pieces — actual completed sales, not asking prices, as covered in valuing antiques. A jeweler's loupe helps you read tiny marks.

When to get a professional appraisal

Have a professional appraise pieces that may contain real gold, platinum, or genuine gemstones, anything signed by a known maker, or items you need documented for insurance or an estate. Use an independent appraiser rather than someone who also wants to buy it — see antique appraisal cost. For loose diamonds and fine stones, a gemological report adds confidence.

Selling antique jewelry

Options range from selling to a jeweler or antique dealer (fast, but a wholesale price) to consignment or auction for higher-value pieces — the trade-offs mirror where to sell antiques. Get more than one offer, and never sell precious pieces for "scrap" price without confirming they don't have higher value as jewelry.

Frequently asked questions

How do I know if old jewelry is real gold?

Look for karat stamps like 10K, 14K, 18K, or 750 (18K), usually on the clasp or inner band. No mark doesn't always mean it's fake, but unmarked pieces should be tested by a jeweler before you assume value.

Is vintage costume jewelry worth anything?

Sometimes — costume jewelry by sought-after makers or from certain eras has real collector demand, but most costume pieces are modest in value since they use non-precious materials. A signature is the biggest value driver.

Have jewelry to value or sell? Find a local antique dealer or jeweler to examine it.