The Gemmological Association of Great Britain

Analysis

The Gemmological Association of Great Britain is a registered charity in England and Wales, based in London. It was registered in May 2005, 21 years ago. Its declared purposes cover education/training and arts/culture/heritage/science, which this site groups under arts, culture, heritage and science. Legally it is a charitable company (Companies House number 01945780). It says it provides services, provides advocacy/advice/information and sponsors or undertakes research.

In the financial year ending December 2025, The Gemmological Association of Great Britain reported income of £3.3m and spending of £3.0m, spending 91% of its income. Across the 5 years on record, from December 2021 to December 2025, income grew from £2.8m to £3.3m (+18%), an average of +4.3% a year. Over the whole period it spent 96% of the income it received.

Among 17,634 England and Wales charities whose main cause is arts, culture, heritage and science and that reported income, The Gemmological Association of Great Britain sits at the 98th percentile: it is larger than about 98% of them. Against every charity in England and Wales with reported income it ranks in the 97th percentile. Charities of a similar size with the same main cause include The Museum of the Home (£3.3m), The New Wolsey Theatre Company Limited (£3.4m) and Wavendon All Music Plan Limited (£3.3m).

In its latest detailed accounts, income came from charitable activities 73% and trading 27%. Charitable activities took 84% of spending and raising funds 13%. Reserves of £2.9m would cover about 11 months of spending at that rate. It employed 22 people.