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

A hallmark applied by a UK Assay Office is not proof of origin or place of manufacture of an item. The hallmark of a UK Assay Office (whether applied by a UK Assay Office in its approved locations in or outside the UK) is proof that an item (in all its parts) is of the standard of fineness indicated by the hallmark struck on that item. Hallmarks applied by UK Assay Offices at their approved locations within the UK are clearly differentiated from those applied by UK Assay Offices in their approved locations outside of the UK).

Sponsor's Mark

The Sponsor's Mark

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

The Fineness Mark

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

Silver Palladium Gold Platinum
Silver 800 Palladium 500 9 ct Gold 375
Sterling Silver 925 Palladium 950 14 ct Gold 585 Platinum 900
Britannia Silver 958 Palladium 999 18 ct Gold 750 Platinum 950
Silver 999 Palladium 500 22 ct Gold 916 Platinum 999
  Palladium 950 Gold 990  
  Palladium 999 Gold 999  
  • Birmingham Assay Office
  • London Assay Office
  • Sheffield Assay Office
  • Edinburgh Assay Office

The Assay Office Mark

Tells you which Assay Office tested and hallmarked the article.

Traditional Fineness Symbols

Archaic Symbols indicating fineness.

  • Stirling Silver
  • Stirling Silver Scotland
  • Britannia Silver
  • Palladium
  • Gold
  • Platinum
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • 2021
  • 2022
  • 2023
  • 2024

Date Letter

Tells you which year the Hallmark was given.

International Convention Marks

This mark is used by countries, including the United Kingdom, that are signatories to the International Convention on Hallmarking and is recognised by all those countries.

  • International Convention Mark: Silver
  • International Convention Mark: Palladium
  • International Convention Mark: Gold
  • International Convention Mark: Platinum

What should I do if my item is not hallmarked?

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

For more information visit www.gov.uk/government/organisations/british-hallmarking-council

Produced in Accordance with the Hallmarking Act 1973 Version 8/2019 © British Hallmarking Council

Our commitment to hallmarking

When it comes to manufacturing jewellery and silverware, precious metals (silver, palladium, gold and platinum) are rarely used in their purest form. Instead they are usually alloyed with lesser metals to achieve a desired strength, durability, and colour.

It is not possible to detect the precious metal content of an item by sight or by touch. It is, therefore, a legal requirement to have items consisting of silver, palladium, gold or platinum independently tested and then hallmarked before they can be described as such.

Items must bear a hallmark at point of sale, subject to the following weight exemptions:
Silver: mandatory for items above 7.78 grams.
Gold: mandatory for items above 1 gram.
Palladium: mandatory for items above 1 gram.
Platinum: mandatory for items above 0.5 grams.

Pearl Gallery is registered with the Edinburgh Assay Office, ensuring our precious metal jewellery is compliant with the UK’s hallmarking regulations. All stock is subject to an internal confirmation process to ensure it meets the UK’s hallmarking regulations before it is dispatched to our customers.

For articles that are below the UK hallmarking Act’s mandatory weight for hallmarking Pearl Gallery operates a separate due diligence process which involves periodic voluntary testing of items that fall below the mandatory weight to ensure they meet the minimum fineness requirement.

Nexus Agencies Limited (company number: 03512625) © 2022 All rights reserved