Protecting the Consumer and Servicing
the Trade with Independence and Integrity


Like many other businesses, the Birmingham Assay Office temporarily closed its doors on Tuesday 24th March for three weeks as stipulated by the Government.

On 16th April, Hallmarking operations as well AnchorCert Pro testing resumed service to support the trade and fulfil its statutory obligations.

After careful planning, the Birmingham Assay Office has re-opened AnchorCert Gem Lab and is fully operational three days a week on Monday, Thursday and Fridays. 

Based in and part of the Birmingham Assay Office, the gem lab offers diamond and tanzanite grading, as well as coloured gemstone and pearl identification. A fully equipped laboratory using certified GIA colour comparison master stones and a range of specialist advanced testing equipment.

Doug Henry, CEO and Assay Master, said: “The safety of our staff and our customers are our priority, and as soon as we felt confident in our amended procedures and systems designed to protect our team, we made the decision to re-open three of our divisions with a skeleton staff whilst adhering to social distancing guidelines.

We must work together to kick start the trade and to help to rebuild the economy.  Together we create confidence.”

If you would like to find out more about Birmingham Assay Office’s opening hours or services please email



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