The 2025 Platinum Britannia 1oz - Bullion2025 Britannia coin struck in 999.5 Fine Platinum with a bullion finish and contains one troy ounce of platinum. Diameter is 32.69mm. Denomination is £100.
The Reverse shows the standing figure of Britannia by Philip Nathan. Legend is "BRITANNIA 2025 1OZ 999.5 PLATINUM".
The 2025 Platinum Britannia 1oz carries several security features that make the coin much more difficult to counterfeit. The features are:
An image that changes from padlock to trident as the coin moves (known as a 'latent' image).
Micro text saying 'DECUS ET TUTAMEN' meaning 'an ornament and a safeguard'.
Surface animation gives the effect of sparkling waves.
The shield and Union flag on the shield have tincture marks.
The edge is milled.
The Obverse is the portrait of King Charles III by Martin Jennings. Legend "CHARLES III D G REX F D 100 POUNDS".Image credit: The Royal Mint
Mintage: Not known
Minted at The Royal Mint
Minted in 2025. See Coins and Events of 2025
Monarch/Ruler: Charles III (2022-Present)
Category: Platinum. See more Platinum coins
and see which Platinum coins have the lowest mintage.
Country of Origin: United Kingdom
List items on:
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 | 2026 GB 1/10 oz .9995 Fine Platinum Britannia Coin King Charles III Effigy BU £ 194.30 |
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 | 1oz Platinum Britannia 2021 Queen Elizabeth II Royal Mint £100 Bullion UK Coin £ 4,899.00 |
 | 2025 Great Britain 1/10 oz Platinum Britannia BU £ 296.25 |
 | Great Britain Platinum Britannia BU .999 Random Year £ 342.96 |
 | 2023 Great Britain 1/10 oz .9995 Fine Platinum Coin (King Charles III) BU £ 222.19 |
 | 2024 Gr Britain £5 Lion & The Eagle 2 Oz Liberty Bell NGC REV PF70 FDI Jennings £ 233.30 |
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