Protecting the Consumer and Servicing
the Trade with Independence and Integrity


The home of UK Hallmarking


Birmingham Assay Office was founded in 1773 to provide assaying (testing) and hallmarking of precious metal items (gold, silver, platinum and palladium) as required by the Hallmarking Act.

It has been a centre of expert opinion and independent assessment of jewellery and precious metals for nearly 250 years.

During recent decades it has expanded its services far beyond its statutory assaying and hallmarking duties to include Diamond, Gemstone & Pearl Certification, Jewellery, Watch and Silverware Valuations, non-precious metal testing, product safety and quality assurance testing as well as educational training and consultancy.


Opening Hours
Monday - 8:30 am - 4:00 pm
Tuesday - 8:30 am - 4:00 pm
Wednesday - 8:30 am - 4:00 pm
Thursday - 8:30 am - 4:00 pm
Friday - 8:30 am - 3:30 pm





Certificate Number:

FS 24058










Recognising excellence in Hallmarking Awareness Launched in conjunction with the release
of the Digital Dealer's No…
01:46 17/05/2022
We are pleased to announce we have been shortlisted for the @retailjeweller UK
Jewellery Awards 2022 for our recent…
11:05 28/04/2022
It is nearly time for the Easter Break. Just a reminder, we are closed
Good Friday and Easter Monday but will reope…
01:02 14/04/2022
Retweet of @PJeweller: TI SENTO – Milano removes red tape and admin for UK
stockists @OfficialTiSento @LtdMesmeric @TheAssayOffice
09:48 07/04/2022
Ti Sento - Milano and Mesmeric Distribution announce hallmarking move to The Birmingham
Assay Office. Read the ful…
03:30 06/04/2022
We are pleased to announce that Demi Beddow, Chemist technician at the Birmingham
Assay Office and Niall Hope, Rese…
02:58 30/03/2022
Today & tomorrow, we are at @Cooksongold in Birmingham for their annual Demo
Days event. We are looking forward to…
01:13 29/03/2022
Retweet of @PJeweller: UK’s top #jewellery employers attend #careers event for country’s
brightest up-and-comers #jewelry #education
12:02 29/03/2022
Retweet of @JOutlook: Birmingham Assay Office hosts careers event for apprentices, students, hobbyists, graduates
of the jewellery trade…
07:31 29/03/2022
Retweet of @UKNAJ: Great event for those interested in a career in the jewellery industry. The NAJ
will be there all day, so please co…
10:02 24/03/2022


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