| Discover our collection of 1/20oz Gold Proof Britannia coins from The Royal Mint — one of the most affordable and highly collectable fractional gold coin series in modern British numismatics. Combining exceptional proof quality with the iconic image of Britannia, these miniature gold proof coins offer an accessible way to own limited-edition Royal Mint releases while remaining popular with both collectors and investors.
First introduced as part of the expanding Britannia proof range, the £5 denomination features many of the series’ most admired reverse designs, including the classic standing Britannia by Philip Nathan alongside annually changing interpretations from leading contemporary artists. Their compact size, lower mintages, and affordable entry point have made 1/20oz Gold Proof Britannias especially popular with collectors building complete date runs and fractional Britannia sets.
This category includes a wide range of 1/20oz Gold Proof Britannia coins, including:
- Royal Mint boxed editions with Certificates of Authenticity
- Certified PCGS and NGC graded examples
- First Strike and special designation coins
- Low mintage proof releases
- 22 Carat and modern .9999 fine gold issues
- Key date and anniversary Britannia coins
- Historic and contemporary Britannia reverse designs
Earlier 1/20oz Britannia proof coins were struck in 22 Carat gold (.9167 fine), while modern releases from 2013 onwards are produced in fine 999.9 gold, continuing The Royal Mint’s transition to pure gold Britannia coinage. Limited mintages, changing annual artwork, and strong collector demand have helped many fractional proof Britannias become increasingly sought after on the secondary market.
Popular releases in this series include early proof Britannia issues, low mintage collector editions, modern security-feature Britannias, and top-grade PR70 examples certified by PCGS and NGC. Many collectors focus on assembling full yearly runs, while others seek out scarce proof-only reverse designs and premium graded coins.
Browse our full range of 1/20oz Gold Proof Britannia coins below, including boxed proof editions, certified graded coins, rare low mintage issues, and modern Royal Mint releases from across the Britannia series.
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