THE GEMMOLOGICAL ASSOCIATION OF GREAT BRITAIN
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Cash
£797k
+93% vs 2024
Net assets
£1.7m
+5.6% vs 2024
Employees
22
+22.2% vs 2024
Profit before tax
—
Period ending 2025-12-31
Net assets
2-year trend · vs Consumer Discretionary median
THE GEMMOLOGICAL ASSOCIATION OF GREAT BRITAIN·Consumer Discretionary median
THE GEMMOLOGICAL ASSOCIATION OF GREAT BRITAIN·Consumer Discretionary median
THE GEMMOLOGICAL ASSOCIATION OF GREAT BRITAIN·Consumer Discretionary median
THE GEMMOLOGICAL ASSOCIATION OF GREAT BRITAIN·Consumer Discretionary median
THE GEMMOLOGICAL ASSOCIATION OF GREAT BRITAIN·Consumer Discretionary median
Accounts
2-year trend · Δ = latest vs prior filed period · latest reflected 2025-12-31
| Metric | Trend | 2024-12-31 | 2025-12-31 | Δ vs prior |
|---|---|---|---|---|
| Total income | £3,205,982 | — | — | |
| Operating profit | — | — | — | |
| Profit before tax | £57,214 | — | — | |
| Net profit | £23,524 | — | — | |
| Cash | £412,789 | £796,824 | +93% | |
| Total assets less current liabilities | £3,033,773 | £3,055,523 | +0.7% | |
| Net assets | £1,612,231 | £1,701,828 | +5.6% | |
| Equity | £1,612,231 | £1,701,828 | +5.6% | |
| Average employees | 18 | 22 | +22.2% | |
| Wages | £779,179 | £830,592 | +6.6% | |
| Directors' remuneration | £0 | £0 | — |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. The Δ column is the change from the prior filed period as a percentage of |prior|; lines a company doesn't report show —. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2024-12-31 | 2025-12-31 |
|---|---|---|---|
| Net margin | 0.7% | — | |
| Gearing (liabilities / total assets) | 65.2% | 66.4% |
Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.
Name history
Renamed 3 times since incorporation
- THE GEMMOLOGICAL ASSOCIATION OF GREAT BRITAIN 2007-06-28 → present
- THE GEMMOLOGICAL ASSOCIATION AND GEM TESTING LABORATORY OF GREAT BRITAIN 1990-10-17 → 2007-06-28
- GEM TESTING LABORATORY OF GREAT BRITAIN 1986-01-14 → 1990-10-17
- CASECLAIM LIMITED 1985-09-10 → 1986-01-14
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Standalone (parent only)
- Abridged
- Yes — abridged accounts (limited disclosure)
- Auditor
- Blick Rothenberg Audit LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“Based on the work we have performed, we have not identified any material uncertainties relating to events or conditions that, individually or collectively, may cast significant doubt on the group's or the parent charitable company's ability to continue as a going concern for a period of at least twelve months from when the financial statements are authorised for issue.”
Group structure
- THE GEMMOLOGICAL ASSOCIATION OF GREAT BRITAIN · parent
- Gemmological Instruments Limited 100%
- Gemmological Consulting (Beijing) Co. Limited 100%
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
8 active · 63 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| HILL, Catherine Elizabeth | Secretary | 2025-02-03 | — | — |
| BAYOUMI - STEFANOVIC, Nevin Ibrahim Khalil | Director | 2019-01-09 | Aug 1975 | Danish |
| FLITCROFT, Katie Mckenzie | Director | 2022-10-26 | Aug 1982 | British |
| HARDY, Joanna | Director | 2017-07-27 | Nov 1961 | British |
| MCCALLUM, Alistair Neil | Director | 2024-11-25 | May 1990 | British |
| PEDERSEN, Marguerite Ann Campbell | Director | 2022-10-26 | Dec 1945 | British |
| SADLER, Philip | Director | 2017-07-27 | Aug 1953 | British |
| TONNA, Pia Pompea | Director | 2022-10-26 | Mar 1970 | British |
Show 63 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| HARDING, Roger, Dr | Secretary | 2001-07-11 | 2005-04-01 |
| HARDING, Roger, Dr | Secretary | 1994-06-13 | 2001-04-26 |
| HART, Alan David | Secretary | 2017-06-23 | 2024-07-26 |
| KLEIN, Adrian Henry | Secretary | — | 1994-06-13 |
| NEALE, Paul Christopher | Secretary | 2008-05-27 | 2009-02-26 |
| OGDEN, John Mullen, Dr | Secretary | 2009-02-26 | 2012-09-17 |
| RILEY, James Henry | Secretary | 2012-09-17 | 2015-08-10 |
| VAN DOREN, Jean-Paul | Secretary | 2000-12-20 | 2001-07-11 |
| WELLS, Miranda Elizabeth Jane | Secretary | 2015-08-10 | 2016-07-26 |
| THROGMORTON SECRETARIES LLP | Corporate Secretary | 2007-07-16 | 2008-04-08 |
| THROGMORTON UK LIMITED | Corporate Secretary | 2005-04-01 | 2007-07-16 |
| BARTHAUD, Paul Alexander | Director | 2005-11-16 | 2006-04-12 |
| BONANNO PATRIZZI, Kathryn Leigh | Director | 2015-08-26 | 2022-10-26 |
| BURGOYNE, Sheila | Director | 2004-09-14 | 2007-06-18 |
| BURLAND, Mary Ann | Director | 2012-07-11 | 2016-09-09 |
| CADZOW, Jessica May | Director | 2014-09-03 | 2015-08-26 |
| CALLAGHAN, David John | Director | — | 1993-06-14 |
| CARMODY, Justine Lynda | Director | 2015-08-26 | 2024-11-13 |
| CAVEY, Christopher Ronald | Director | 1991-11-20 | 1999-01-26 |
| COLLINS, Alan Trevor, Professor | Director | 2004-09-14 | 2011-07-07 |
| COLLINS, Steven | Director | 2009-06-22 | 2015-06-11 |
| DAVIDSON, Terence Malcolm John | Director | — | 2008-07-01 |
| DEEKS, Noel | Director | — | 2001-07-14 |
| DEEKS, Noel | Director | — | 1991-11-04 |
| DRUCKER, Richard Barry | Director | 2022-10-26 | 2022-10-26 |
| EMMS, Eric Charles | Director | 1993-09-08 | 1995-05-24 |
| EVERITT, Sally Ann | Director | 2004-09-14 | 2007-10-17 |
| EXLEY, Lesley Margaret | Director | 2017-05-10 | 2017-11-27 |
| GOLDRING, Louise Claire | Director | 2019-01-09 | 2022-10-26 |
| GREER, Paul Frank | Director | 2013-07-03 | 2018-12-03 |
| GREGORY, Kerry Honor | Director | 2015-08-26 | 2018-10-02 |
| HARDING, Roger, Dr | Director | — | 2004-11-09 |
| HART, Alan David | Director | 2015-01-19 | 2016-02-17 |
| HODGKINSON, John Alan William | Director | 2015-08-26 | 2017-07-27 |
| HUDSON, Lawrence | Director | 2003-09-09 | 2005-10-11 |
| ISRAEL, Nigel Brian | Director | 2013-07-03 | 2018-10-02 |
| ISRAEL, Nigel Brian | Director | — | 1991-11-04 |
| JACKSON, Brian | Director | 2009-06-22 | 2013-11-18 |
| JOBBINS, Edward Allan | Director | 2004-09-14 | 2006-06-27 |
| JOBBINS, Edward Allan | Director | — | 1993-09-08 |
| JORDAN, Steven Leonard | Director | 2010-11-08 | 2012-03-29 |
| LAMBERT, Jonathan | Director | 2014-06-12 | 2015-07-15 |
| MCCALLUM, Marcus Alexander | Director | 2005-09-11 | 2006-11-08 |
| MERCER, Ian Frederick | Director | 1999-05-19 | 2004-11-09 |
| MONNICKENDAM, Jeffrey | Director | 1999-04-21 | 2005-06-22 |
| O'DONOGHUE, Michael John | Director | 1998-09-24 | 2008-06-30 |
| OGDEN, John Mullen, Dr | Director | 2015-08-26 | 2018-12-04 |
| OLDERSHAW, Cally Jane Elizabeth | Director | 2009-06-22 | 2013-11-18 |
| PALMER, Landy | Director | 2010-11-08 | 2012-04-17 |
| RANKIN, Andrew Hugh, Professor | Director | 2012-07-11 | 2014-06-12 |
| RILEY, James Henry | Director | 2007-01-17 | 2012-03-15 |
| SCARRATT, Kenneth Vincent Granville | Director | — | 1992-12-26 |
| SLATER, Richard Mark | Director | 2009-12-15 | 2017-07-27 |
| SMITH, Christopher Patrick | Director | 2015-08-26 | 2023-03-01 |
| STERN, Evelyne | Director | 1999-04-21 | 2010-09-05 |
| THOMSON, Ian | Director | — | 2004-09-14 |
| VAN DOREN, Jean-Paul | Director | 2000-12-20 | 2001-11-22 |
| WATES, Peter John | Director | 2004-09-14 | 2007-05-16 |
| WATSON, Vivian Peter | Director | — | 2005-05-26 |
| WELLS, Miranda Elizabeth Jane | Director | 2012-07-11 | 2016-07-26 |
| WHITTAKER, Stephen Peter Lewis | Director | 2013-07-03 | 2015-07-11 |
| WILLIAMS, Jason Francis | Director | 2012-04-27 | 2015-07-10 |
| WILLIAMS, Jason Francis | Director | 2007-03-21 | 2010-09-05 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Miss Justine Lynda Carmody | Individual | Significant influence | 2016-04-06 | Ceased 2017-08-31 |
| Kathryn Leigh Bonanno Patrizzi | Individual | Significant influence | 2016-04-06 | Ceased 2017-08-31 |
| Christopher Patrick Smith | Individual | Significant influence | 2016-04-06 | Ceased 2017-08-31 |
| Dr John Mullen Ogden | Individual | Significant influence | 2016-04-06 | Ceased 2017-08-31 |
| Miss Kerry Honor Gregory | Individual | Significant influence | 2016-04-06 | Ceased 2017-08-31 |
| Mrs Mary Ann Burland | Individual | Significant influence | 2016-04-06 | Ceased 2017-08-31 |
| John Alan William Hodgkinson | Individual | Significant influence | 2016-04-06 | Ceased 2017-08-31 |
| Mr Richard Mark Slater | Individual | Significant influence | 2016-04-06 | Ceased 2017-08-31 |
| Mrs Miranda Elizabeth Jane Wells | Individual | Significant influence | 2016-04-06 | Ceased 2017-08-31 |
| Mr Paul Frank Greer | Individual | Significant influence | 2016-04-06 | Ceased 2017-08-31 |
| Mr Nigel Brian Israel | Individual | Significant influence | 2016-04-06 | Ceased 2017-08-31 |
Filing timeline
Last 20 of 260 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-08-09 | AA | accounts | Accounts with accounts type group | |
| 2025-09-11 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-07-09 | AA | accounts | Accounts with accounts type group | |
| 2025-06-05 | CH01 | officers | Change person director company with change date | |
| 2025-02-26 | AP03 | officers | Appoint person secretary company with name date | |
| 2025-02-25 | AD01 | address | Change registered office address company with date old address new address | |
| 2025-02-25 | AD01 | address | Change registered office address company with date old address new address | |
| 2025-02-11 | AD01 | address | Change registered office address company with date old address new address | |
| 2024-11-28 | AP01 | officers | Appoint person director company with name date | |
| 2024-11-14 | TM01 | officers | Termination director company with name termination date | |
| 2024-10-07 | AA | accounts | Accounts with accounts type group | |
| 2024-09-20 | CH01 | officers | Change person director company with change date | |
| 2024-09-19 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-08-23 | TM02 | officers | Termination secretary company with name termination date | |
| 2023-12-12 | TM01 | officers | Termination director company with name termination date | |
| 2023-10-05 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-10-04 | TM01 | officers | Termination director company with name termination date | |
| 2023-09-18 | AA | accounts | Accounts with accounts type group | |
| 2023-09-05 | CH01 | officers | Change person director company with change date | |
| 2023-06-09 | AP01 | officers | Appoint person director company with name date |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 2
- Capital events
- 0
- Officers appointed
- 0
- Officers resigned
- 0
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.