Available Hallmarks

UK Compulsory Hallmark

This mark comprises three compulsory component marks.

Sponsor's markMillesimal fineness markAssay Office mark

 

Sterlingmin

Full Traditional UK Hallmark

Unless otherwise stated this is the standard mark which we apply. It comprises five marks:

Sponsor's markTraditional fineness markMillesimal fineness markAssay Office markDate letter mark

 

Sterling2010

Common Control and Convention Marks

The UK has been a signatory to the International Convention on Hallmarks since 1972.

This means that UK Assay Offices can strike the Convention Hallmark which will then be recognised by all member countries in the International Convention. Conversely, Convention Hallmarks from other member countries are legally recognised in the UK.

Articles bearing the Convention Hallmark do not have to be re-hallmarked in the UK.

Finenesses recognised under the Convention are:

Gold - 375, 585, 750, 916, 990, 999. Silver - 800, 925, 999. Platinum - 850, 900, 950, 999. Palladium 500, 950 and 999

A Convention Hallmark comprises four marks:

Sponsor's markCommon Control markMillesimal fineness markAssay Office mark

 

750HallMark

More information on the International Convention on Hallmarks and its members can be found here.

Commemorative Marks

These are marks that are struck to commemorate a special event. The current commemorative mark is for the Queen’s Diamond Jubilee which is available to be struck for as little as 60p. For more information, visit our Useful Download section.