How to identify gold hallmarks

A gold hallmark can tell you karat, country, maker, or assay office. It cannot tell you final value by itself.

Close-up of a jewelry hallmark under appraisal lighting
Use hallmarks as a starting point. Karat, weight, maker, stones, and condition still need review.

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The quick answer

Common gold marks include 10k, 14k, 18k, 22k, 375, 585, 750, and 916. These suggest gold content when genuine. Maker marks, country marks, and assay marks add context.

Gold hallmark checklist

  • 375: usually 9k gold.
  • 417 or 10k: usually 10k gold.
  • 585 or 14k: usually 14k gold.
  • 750 or 18k: usually 18k gold.
  • 916 or 22k: usually 22k gold.
  • Other clues: GF, GP, HGE, rolled gold, or plated marks mean different things.

Auction evidence from Appraisily's database

These records are market examples, not final appraisals. They show why karat marks must be read with form, weight, maker, and condition.

PhotoCategorySaleDateLotRealizedWhat it shows
Image unavailable14k gold chainBerner's Auction GalleryApr. 30, 202614k Yellow Gold Italian Figaro Box Chain NecklaceUSD 550Karat and chain style both matter.
Image unavailable18K necklaceInternational Art Sale ItalyApr. 29, 202618KT GOLD NECKLACE WITH BRONZE COIN REPLICAEUR 9,800Karat is only one part of value when design and pendant matter.
Market example: 1925 14k Tiffany class ring14k class ringHess Fine ArtJan. 31, 2026Antique Dated 1925 14k Gold Tiffany & Co Signet Coat of Arms Class School Ring Art Deco Size 8USD 1,500Karat, maker, age, and form can work together.

Photo checklist

  • Macro photo of every mark, plus the full item.
  • Clasp, inside band, chain tag, pendant bail, back, stones, wear, and repairs.
  • Weight, dimensions, box, receipt, certificate, and old appraisal.

When to get a professional appraisal

Use professional appraisal when a piece has diamonds, designer marks, high karat, estate use, insurance, donation, or sale needs. See 585 stamp meaning for a focused 14k guide.

Related guides

Continue with old jewelry marks, how to tell if old jewelry is real gold, value of old gold jewelry, free gold appraisal app, and jewelry and watch guides.

FAQ

Is 14k always marked 585?

No. 14k, 585, and other systems can appear, depending on country and period.

Can gold plate have confusing marks?

Yes. GP, GF, HGE, rolled gold, and plated marks should not be read as solid gold.

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Upload photos. We identify the object, check real sales, and show the right appraisal path.

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