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Why Choose Us?

We are the history of hallmarking in the UK, we are the future of hallmarking in the UK.

Quality of mark

The leopard’s head mark of London has been used by some of the finest craftsman in history and continues to be the mark of quality for many of the leading jewellers and silversmiths today.

In order to retain this quality, we regularly employ apprentices who receive four years specialist training before becoming skilled in the art of assaying and hallmarking.  

The combined experience of our team is the keystone of our expertise and professionalism. We use the most modern and advanced equipment and technology that is available, not only to apply our laser hallmarks but to manufacture the finest quality punches used for traditional marking.

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Laser hallmark, date letter K dates from 2009

Quality of service

Helping the customer lies at the heart of everything that we do and we have always tried to respond to the changing needs of the trade.

Today, we are conscious that quality, speed and flexibility of services are a high priority. As well as operating over four sites, we also offer four different levels of service to help you achieve your lead times.

Our digital portfolio includes online registration, packet tracking, packet payment and email and text alerts letting you know when your work is ready.

We also keep you updated with all the news and events through our e-newsletter and social media sites, and can provide point of sale material to help you market your product.

Quality of support

Being part of the Goldsmiths’ Company means we are dedicated to supporting the trade, students, graduates, and the public by providing educational lectures and tours, workshops and training. You will also often hear about us going on the road to schools and colleges to talk about the importance of hallmarking.

We realise that some people may find hallmarking a little daunting at first, so we offer a complimentary behind the scenes tour for every new customer to give you a better understanding.

Furthermore, we offer a range of other services, all designed to help the trade in different ways - and each delivered with quality. We offer Valuations, Laser EngravingLaboratory Services, Photography Services, Antique Plate Committee, Assistance to Trading Standards, Punch Making, assistance with Tracing Hallmarks, Lectures and Tours.

Read more about our support for the trade here.

Hallmarking a bowl with a straight neck punch

Taking scrapings from silver articles for assaying

Our History

The Goldsmiths’ Company Assay Office is where hallmarking began, and we have been testing and hallmarking precious metals for over 700 years. Our reputation for excellence in hallmarking, service, and support is both revered and unparalleled.

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History in the marking, history in the making.