Welcome to the Goldsmiths' Company Assay Office


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Every Mark Matters

The Goldsmiths’ Company Assay Office is where hallmarking began, and we have been testing and hallmarking precious metals for over 700 years. At the Goldsmiths' Company Assay Office we provide both traditional handmarking and the latest laser marking techniques across three key London locations with a choice of three priority services including one hour, same day and early hall. We process 3 million articles a year, in 100,000 packets, and are proud to apply the leopard's head townmark of London to each and every one. 

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Disclaimer: Price does not include VAT. The Goldsmiths’ Company Assay Office makes every effort to ensure the accuracy of calculations, but will not be held responsible for any subsequent loss or inconvenience. Prices given are indicative only and will depend on registration type, options chosen during packet submission etc.

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Disclaimer: Price does not include VAT. The Goldsmiths’ Company Assay Office makes every effort to ensure the accuracy of calculations, but will not be held responsible for any subsequent loss or inconvenience. Prices given are indicative only and will depend on registration type, options chosen during packet submission etc.

News & Events

Jacqui Larsson Creates Bespoke Jewelled Ear Clip for Hearing Impaired Client

When it was time for the ear clip to be assayed and hallmarked with us, sampler Dave Archer who is deaf, was keen to be involved.  Jacqui said "It is particularly poetic that a hearing impaired person has been involved in the sampling of the snake during the hallmarking process. It is also reassuring to learn that he has worked for the London Assay Office for over 40 years which demonstrates the vision of the LAO in embracing disability in the workforce years ago. - this was clearly well ahead of the curve."

Date Published: 11 November 2019

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