| Discover our collection of 1/40oz Gold Proof Britannia coins from The Royal Mint — the smallest and most affordable denomination in the modern Britannia gold proof series. Combining exceptional proof quality with the iconic image of Britannia, these miniature fractional gold coins offer collectors an accessible way to own limited-edition Royal Mint gold proof issues while remaining highly sought after for their rarity, detail, and collectability.
Issued as part of selected Britannia proof collections, the 1/40oz denomination features many of the series’ most admired reverse designs, including classic representations of Britannia alongside modern interpretations from leading contemporary artists. Their extremely small size, limited mintages, and inclusion in premium fractional proof sets have made 1/40oz Gold Proof Britannias especially popular with collectors of complete Britannia date runs and fractional gold coin series.
This category includes a wide range of 1/40oz 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 1/40oz Britannia proof coins were struck in 22 Carat gold (.9167 fine), while later releases follow The Royal Mint’s transition toward fine 999.9 gold Britannia coinage. Limited mintages, changing annual artwork, and strong collector demand have helped many of these tiny fractional proof coins become increasingly desirable on the secondary market.
Popular releases in this series include early fractional Britannia proof sets, scarce low mintage collector editions, modern security-feature Britannias, and top-grade PR70 examples certified by PCGS and NGC. Many collectors focus on assembling complete fractional Britannia sets, while others seek out rare proof-only reverse designs and premium graded examples.
Browse our full range of 1/40oz 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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