Protecting the Consumer and Servicing
the Trade with Independence and Integrity


The home of UK Hallmarking


welcome to the birmingham ASSAY oFFICE

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.










Birmingham Assay Office to host De Beers Group Institute of Diamonds Synthetic
Diamond Detection Course. Click here…
09:32 19/02/2019
Day 2 at @The_CMJ Spring Trade Show! Have you managed to pick up
any exclusive offers on #diamondinscription and…
03:14 18/02/2019
AnchorCert Gem Lab encourage the jewellery trade to remain vigilant, as they report
an increase in the number of La…
01:28 12/02/2019
Retweet of @Academy1773: Our upcoming one-day course is a great opportunity safeguard your business by
receiving a detailed insight into how…
03:59 11/02/2019
Retweet of @The_CMJ: There will be lots of amazing offers at the CMJ trade event
including exclusive training with @TheAssayOffice. Book…
02:01 10/02/2019
Our next valuation day is this Thursday 14th February. If you're looking
to have your precious items professionally…
01:31 08/02/2019
Retweet of @Academy1773: We've got one place left on our Understanding Diamonds Course taking place on
Tuesday 26th February. Don't miss ou…
10:38 29/01/2019
Safeguard Valuations 2019: через @YouTube
09:41 28/01/2019
Retweet of @ScruffyDogSteph: Bangle bashing update!!! All formed and shaped, some stamped too... I need a
pint of tea... then it’s time to tid…
02:04 16/01/2019
Retweet of @bhamts: #ScamAware beware if offered gold jewellery cheap always ensure hallmarked info
on our web…
02:00 16/01/2019


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