Hallmarking Act 1973

Dealers Notice

Ask if it’s hallmarked. It’s your guarantee.

Dealers Notice: Ask if it's hallmarked. It's your guarantee. British Hallmarking Council notice explaining UK hallmarks. View full size
Version 3/2010 · © British Hallmarking Council

In the UK it is illegal to sell or describe any item as Gold, Silver, Platinum or Palladium unless it is hallmarked*

A UK hallmark is struck by an independent assay office and guarantees the precious metal content of the item you are buying. Sellers in contravention of the law may be prosecuted and could face fines or imprisonment.

The hallmark comprises three compulsory marks

  • Sponsor’s Mark

    The registered mark of the company that submitted the article for hallmarking.

  • Fineness Mark

    Tells you the precious metal content, expressed in parts per thousand.

  • Assay Office Mark

    Tells you which Assay Office tested and hallmarked the article.

You may see optional marks, such as the traditional fineness symbol and the date letter depicting the year the item was hallmarked.

Exemption weights

Exemption weights
SilverPalladiumGoldPlatinum
7.78 grams1.0 gram1.0 gram0.5 grams

* Articles above these weights must be hallmarked.

What should I do if my item is not hallmarked?

If you have a concern regarding hallmarking contact your local Trading Standards Authority.

Download the notice (PDF)

Produced in accordance with the Hallmarking Act 1973.