Welcome to the Goldsmiths' Company Assay Office


Account Login Register Online

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. 

Get Hallmarking!

Hallmarking Price Calculator

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.

Your Price

£00.00

If you are registered, please login to submit your package. If not a member, please register.

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

Q&A with Kate Hainge, Make Your Mark Awards 2016 Prize Winner

Kate Hainge was awarded the second prize in the Jewellery category at the Make Your Mark Awards 2016 for her Magnifying Ring design. One of the prizes was a mentorship with esteemed British jewellery designer Stephen Webster, who has been designing and making jewellery for more than 40 years. After starting out in the jewellery industry as an apprentice in London’s Hatton Garden, the Stephen Webster brand is now known the world over for its bold design style while celebrating traditional craftsmanship.

Kate tells us what she has taken away from this invaluable and unique experience.

Read Article