Gem-A headquarters is situated in the heart of London’s Hatton Garden, the jewellery district.
It is ideally located for transport links from across
the region as well as being on direct rail route from
London Gatwick and Luton airports and within
easy reach of Heathrow and City Airports .

The Gemmological Association
and Gem Testing Laboratory of Great Britain
27 Greville Street, London, EC1N 8TN, UK

Telephone: +44 (0)20 7404 3334

Fax: +44 (0)20 7404 8843

Email: information@gem-a.info