about the hallmarking convention

Guaranteeing the quality of precious metal jewellery & watches and facilitating their trade

The objective of the Hallmarking Convention (also known as "Precious Metals Convention") is to facilitate trade in precious metal articles while at the same time maintaining fair trade and consumer protection justified by the particular nature of these articles.

News & Events


Standing Committee and Related Events in Geneva

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Accession of Italy

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Dates of next meetings

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Standing Committee and Related Events in Edinburgh

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Who are the Members?

There are currently 22 Contracting States, which are parties to the Convention.

2 other States are in the process of joining.


For the list of the 22 Contracting States    click here

What is the Convention?

What is the Convention?

How is it working?

By downloading the information brochure on the Convention, you will get a short and concise overview on the Convention. Please note the brochure needs to be updated to include the accession of Italy on 15 December 2023.


Key benefits

Why should a State join the Convention?

What are the advantages of applying the Common Control Mark on precious metal articles?


Get the replies to your questions by    clicking here

Country profile

Regulations on the control and marking of precious metal articles vary from country to country.

Our database, which will progressively expand to Non-Members, provides useful links and information related to precious metal control.

For the database, see  Country Profile