The Gemmological Association Of Great Britain
Also known as: The Gemmological Association and Gem Testing Laboratory of Great Britain, Gem-a
Providing gemmological education and information, and providing Gemmological Association membership services.
Activities & Mission
Providing gemmological education and information, and providing Gemmological Association membership services.
Areas of Operation
Where this charity is registered to operate, as self-declared to the Charity Commission. These are regulatory classifications, not a list of active programmes, and don't necessarily indicate fundraising activity in each location.
Show all 26 areas of operation Hide areas of operation
Financial Information
Financial Efficiency
Latest Financial Breakdown
Income Sources
Expenditure Categories
Financial Trend
Annual Returns
As filed with the Charity Commission for England and Wales. Most recent filing covers the financial year ending 2025.
| Financial Year | Income | Expenditure | Charitable Spending | Net Assets | Reserves | Staff |
|---|---|---|---|---|---|---|
| 2025 | £3,320,137 | £3,008,415 | £2,598,727 | £2,927,602 | £2,927,602 | 22 / 0 |
| 2024 | £3,205,982 | £3,182,458 | £2,563,104 | £2,615,880 | £2,615,880 | 18 / 0 |
| 2023 | £3,178,194 | £3,274,425 | £2,583,867 | £2,592,356 | £2,592,356 | 18 / 0 |
| 2022 | £2,987,749 | £2,804,153 | £2,251,526 | £2,688,587 | £2,688,587 | 18 / 0 |
| 2021 | £2,806,596 | £2,627,133 | £1,943,495 | £2,470,991 | £2,470,991 | 19 / 0 |
Staff column shows: Employees / Volunteers
Frequently asked questions about The Gemmological Association Of Great Britain
What does The Gemmological Association Of Great Britain do?
Providing gemmological education and information, and providing Gemmological Association membership services.
How much income did The Gemmological Association Of Great Britain report in 2025?
The Gemmological Association Of Great Britain reported total income of £3.32m and reported expenditure of £3.01m for the financial year ending 2025, based on the most recent annual return filed with the Charity Commission.
When was The Gemmological Association Of Great Britain registered as a charity?
The Gemmological Association Of Great Britain was registered with the Charity Commission for England and Wales on 19 May 2005 as charity number 1109555. It has been registered for 21 years.
Who runs The Gemmological Association Of Great Britain?
The Gemmological Association Of Great Britain is governed by a board of 7 trustees. Trustees are legally responsible for the charity's governance and are listed in full on its profile.
Where does The Gemmological Association Of Great Britain operate?
The Gemmological Association Of Great Britain operates across 26 areas, including Australia, Bahrain, Burma and 23 others. The full list is shown on its profile.
Is The Gemmological Association Of Great Britain a registered charity?
Yes — The Gemmological Association Of Great Britain is a registered charity in England and Wales, charity number 1109555.
Details
London
EC1N 6TD
Registry Information
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Also Known As
- The Gemmological Association and Gem Testing Laboratory of Great Britain
- Gem-a
Data & trust
- Register data refreshed
- 30 July 2026
- Methodology
- How metrics are calculated