2025 Britannia UK 1/3oz Gold Proof Coin
The 2025 Britannia UK 1/3oz Gold Proof Coin marks a significant milestone in the history of Britain’s most iconic modern coin series. Struck by The Royal Mint from 1/3 troy ounce (10.37g) of .9999 fine gold, this is the first ever 1/3oz Gold Proof Britannia to be released, making it a landmark issue for both collectors and investors.
Finished to The Royal Mint’s highest Proof standard, each coin features frosted design elements contrasted against mirror-like fields, highlighting the intricate detail of Britannia’s latest portrayal. The 2025 design celebrates 350 years of Britannia appearing on British coinage, making this release even more significant.
With a Limited Edition Presentation of just 550 coins, demand for this inaugural denomination has been exceptionally strong. As an official UK legal tender gold coin, it is VAT free as investment gold and generally Capital Gains Tax (CGT) exempt for UK residents under current legislation.
Why Buy the 2025 Britannia UK 1/3oz Gold Proof Coin?
- Official Royal Mint Gold Proof coin
- First ever 1/3oz Gold Proof Britannia
- Struck from 1/3 troy ounce (10.37g) of .9999 fine gold
- Finished to The Royal Mint’s Proof standard
- Celebrates 350 years of Britannia on British coinage
- Features a brand-new Britannia design by Bradley Morgan Johnson
- Official portrait of King Charles III
- Limited Edition Presentation of 550
- Beautiful presentation packaging from The Royal Mint
- UK legal tender
- VAT free investment gold
- Capital Gains Tax exempt for UK residents
- Excellent addition to both Britannia and Royal Mint collections
About the 2025 Britannia
The 2025 Britannia collection celebrates 350 years since Britannia first appeared on British coinage in 1672 during the reign of King Charles II. Few figures have become as closely associated with Britain as Britannia, symbolising strength, resilience and the nation’s enduring maritime heritage.
To commemorate this historic anniversary, The Royal Mint commissioned artist Bradley Morgan Johnson to create an entirely new interpretation of Britannia. Unlike previous depictions, this design places Britannia above rolling waves, illuminated by rays of sunlight that emphasise her enduring connection with the sea. The result is a contemporary yet unmistakably British interpretation of one of the nation’s oldest symbols.
The obverse features the official coinage portrait of His Majesty King Charles III, designed by Martin Jennings, continuing the new era of British coinage under the reign of King Charles III.
What Makes a Proof Coin Special?
Proof coins represent the highest standard of minting produced by The Royal Mint.
Unlike standard bullion coins, Proof coins are struck using specially prepared dies and highly polished blanks. Each coin is struck multiple times under greater pressure to produce exceptional detail, crisp frosted devices and highly reflective mirror fields.
The result is a coin with significantly greater visual appeal than a standard bullion strike, making Proof coins particularly desirable among collectors.
Proof coins are not intended for circulation and are carefully handled throughout the manufacturing process before being presented in official Royal Mint packaging.
Why Buy the First 1/3oz Gold Proof Britannia?
The 2025 release is historically important because it introduces an entirely new denomination to the Britannia Proof series.
As the first ever 1/3oz Gold Proof Britannia, it represents a landmark issue within one of The Royal Mint’s most popular collections.
First-year releases often attract strong collector interest because they mark the beginning of a new series or denomination.
Combined with the anniversary design, limited presentation and exceptional Proof finish, the 2025 1/3oz Gold Proof Britannia stands out as one of the most significant Britannia releases in recent years.
Why Choose a 1/3oz Gold Coin?
The 1/3oz denomination offers an excellent balance between affordability and collectability.
Benefits include:
- Lower purchase price than larger Proof gold coins
- Contains 1/3 troy ounce of .9999 fine gold
- Easier entry into premium Royal Mint Proof coins
- Ideal for building a Britannia collection
- Beautiful display piece
- Easier to store and protect
- Official Royal Mint issue
- Highly collectible inaugural denomination
Key Specifications
Manufacturer: The Royal Mint
Year: 2025
Metal: .9999 Fine Gold
Weight: 1/3 Troy Ounce (10.37g)
Quality: Proof
Denomination: £30
Collection: Britannia
Reverse Designer: Bradley Morgan Johnson
Obverse Designer: Martin Jennings
Limited Edition Presentation: 550
UK Legal Tender: Yes
VAT Free: Yes – Investment Gold
Capital Gains Tax Exempt: Yes – For UK Residents
Frequently Asked Questions
Is this the first 1/3oz Gold Proof Britannia?
Yes. The 2025 issue is the first time The Royal Mint has released a 1/3oz Britannia in Gold Proof format.
What is the Limited Edition?
The coin has a Limited Edition Presentation of just 550, making it one of the scarcer modern Britannia Proof releases.
Is this a bullion coin?
No. This is a Proof coin, struck to a much higher finish than standard bullion coins and intended primarily for collectors.
What is the difference between Proof and Bullion?
Proof coins are struck multiple times using specially prepared dies and polished blanks to produce exceptional detail and mirror-like surfaces. Bullion coins are produced primarily for investment and are manufactured using standard minting techniques.
Does the coin contain pure gold?
Yes. It is struck from .9999 fine (24-carat) gold.
Is the coin VAT free?
Yes. Investment-grade gold is exempt from VAT in the UK.
Is the coin Capital Gains Tax exempt?
Yes. As an official UK legal tender gold coin, qualifying gains are generally exempt from Capital Gains Tax for UK residents.
Will my coin come in Royal Mint packaging?
Yes. Each coin is supplied in its official Royal Mint presentation packaging with the accompanying booklet and certificate where issued by the Mint.
Is this coin suitable as a gift?
Absolutely. Its presentation box, limited edition status and Proof finish make it an excellent gift for collectors, anniversaries or special occasions.
Delivery
Every order is securely packaged and fully insured before dispatch.
We use Royal Mail Special Delivery to ensure your coin arrives safely, with tracking details provided once your order has been dispatched.
Prices are based on the live gold market where applicable, and availability is subject to stock levels.
















