Guidance

Hallmarking guidance notes

Information from the UK's assay offices giving guidance on the Hallmarking Act 1973.

• From: British Hallmarking Council
• Published: 12 July 2013
• Last updated: 30 December 2022 — See all updates

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Hallmarking: practical guidance - summary

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Hallmarking: practical guidance

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An explanation of why precious metal articles are hallmarked and the standards for hallmarking precious metal. The official symbols, including sponsor’s or maker’s mark and the metal and fineness (purity) marks are also published in this guide.

Published 12 July 2013
Last updated 30 December 2022 + show all updates

1. 30 December 2022

   Updated version of Hallmarking practical guidance published.

2. 15 November 2016

   Updated guidance on the gold fineness description for gold plated silver articles (page 10).

3. 17 August 2016

   Guidance updated to include information on hallmarking Mokume Gane articles containing precious metals.

4. 26 July 2013

   added Providing better information and protection for consumers policy tag

5. 12 July 2013

   First published.