Assay Office
| AF | AG | AJ | AL | AT |
|---|
AF
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Aileen Frances Blake 1985 | 2019 | Platinum diamond set ring | Import mark |
AG
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Alfred Godfey (Perfection Jewellery) | No date letter Seen 2018 | 18ct white gold ring |
AJ
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Art Jewels (1945 – 1986) | 1946 | Silver brooch | Hackney |
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Alan John Whitestone 1961 to 2008 | 2019 | 18ct white gold diamond set ring |
AL
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Alan Landsberg (1980) 1966 – 1996 | 2020 | 9ct diamond cluster ring |
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Arabel Lebrsan | 2019 | 18ct rose gold bespoke diamond and coloured stone set dress ring | With Fair trade mark |
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Asprey 2006 | 2019 | 18ct yellow gold bespoke diamond ring | West End retailer |
 | Asprey 1984 | 2019 | 18ct yellow gold bespoke diamond ring |
AT
| Mark | Maker | Dates seen | Seen on | Comments |
|---|---|---|---|---|
 | Alfred Terry Ltd | No date letter seen 2018 | 9ct white gold diamond set dress ring | Prolific maker |