Gold Britannia vs Gold American Eagle: Which Should You Buy?

The Gold Britannia and the Gold American Eagle are two of the most popular bullion coins in the English-speaking world — but they sit at opposite ends of the purity spectrum and, for UK investors, the tax divide between them is decisive.

This guide compares the Gold Britannia and the Gold American Eagle on purity, tax, premiums, security and resale value, so you can decide which belongs in your portfolio.

Quick verdict

• Choose the Gold Britannia if you're a UK investor — its CGT-free, VAT-free status means you keep 100% of your gains.
• Choose the Gold American Eagle if you want a durable 22-carat coin with an iconic design, or you invest from the US.

At a glance: Britannia vs American Eagle

Feature	Gold Britannia	Gold American Eagle
Mint	The Royal Mint (UK)	The United States Mint (USA)
First minted	1987	1986
Purity	999.9 fine (24-carat)*	916.7 fine (22-carat)
Pure gold (1 oz coin)	31.10 g	31.10 g
Alloy	None (fine gold)	Gold, silver & copper
Sizes	1 oz, ½, ¼, 1/10 oz	1 oz, ½, ¼, 1/10 oz
Legal tender	£100 (GBP)	$50 (USD)
UK VAT	Exempt	Exempt
UK CGT	Exempt (UK legal tender)	Payable on gains
Security	Latent image, micro-text, tincture lines	Reeded edge, intricate relief
Design	Britannia / monarch	Liberty / eagles
Global liquidity	Very high	Very high
Typical premium	Low–medium	Medium

*Struck in 22-carat gold from 1987–2012, then 999.9 fine from 2013 onwards.

About the Gold Britannia

Introduced by The Royal Mint in 1987, the Gold Britannia was Europe's first investment gold coin. Struck in 22-carat gold for its first 25 years, it was upgraded to 999.9 fine gold in 2013. Its reverse carries Philip Nathan's standing figure of Britannia, helmeted with trident and shield, while the obverse shows the reigning monarch.

The Britannia is now regarded as one of the most visually secure coins in the world, following the Royal Mint's 2021 introduction of a latent image, micro-text and surface tincture lines. For UK investors, its status as legal tender — and therefore its CGT exemption — is its defining advantage.

About the Gold American Eagle

The Gold American Eagle was launched by the United States Mint in 1986 under the Gold Bullion Coin Act, and quickly became the best-selling gold coin in the US. Unlike the pure coins, the Eagle is struck in 22-carat (916.7) gold, alloyed with silver and copper for a durable, scratch-resistant finish — a deliberate nod to the historic American gold pieces of the early 20th century.

The obverse reuses Augustus Saint-Gaudens' celebrated 1907 Liberty design, widely regarded as the most beautiful ever to appear on a US coin; the reverse depicts a family of eagles. The gold itself is sourced from American mines by law.

Key differences

Purity and gold content

This is the headline contrast. The Britannia has been 999.9 fine (24-carat) since 2013, while the American Eagle is 22-carat (916.7), alloyed with silver and copper. Both 1 oz coins still contain a full troy ounce of pure gold — the Eagle simply weighs more overall to carry the alloy. The Eagle's harder surface resists marks better; the Britannia's purer surface is softer but brighter.

Tax treatment in the UK

For UK buyers this is the deciding factor. Both coins are VAT-free, but only the Britannia is CGT-free, as UK legal tender. The American Eagle is a foreign coin and therefore subject to Capital Gains Tax on profits above the annual allowance. Over a long, appreciating holding, the Britannia's exemption can outweigh every other consideration.

Premiums and value

The American Eagle typically carries a slightly higher premium than the Britannia, partly because the US Mint historically sourced its blanks externally, adding cost. The Britannia usually sits in a low-to-medium band and, for UK investors, delivers better net value once tax is accounted for.

Security and authentication

The Britannia leads on modern anti-counterfeit technology with its 2021 latent-image suite. The Eagle relies on its intricate relief and reeded edge rather than micro-engineered features, though its global familiarity makes fakes easier to spot by weight and dimension.

Design and collectibility

Both are design icons: the Britannia's classical figure versus the Eagle's Saint-Gaudens Liberty. The Eagle's design is essentially fixed and instantly recognised in North America; the Britannia is a fixture across the UK and Europe.

Liquidity and resale

Both are highly liquid worldwide. The Eagle dominates in the United States, while the Britannia is easiest to trade across the UK and Europe.

Pros and cons

Gold Britannia

• Pros: CGT-free for UK investors, VAT-free, 24-carat since 2013, Advanced 2021 security features, Strong UK/EU liquidity
• Cons: Softer pure-gold surface marks more easily, Pre-2013 coins are 22-carat

Gold American Eagle

• Pros: Durable 22-carat alloy resists scratches, Iconic Saint-Gaudens design, Exceptional liquidity in the US
• Cons: Subject to UK Capital Gains Tax, Often a higher premium, Heavier than its gold content

Which should you buy?

• Best for UK tax efficiency: Gold Britannia — CGT-free status is unbeatable for UK residents.
• Best for durability: Gold American Eagle — the alloy resists handling marks.
• Best for US-based investors: Gold American Eagle — unrivalled domestic recognition.
• Best for classic design: A close call — Saint-Gaudens Liberty versus the timeless Britannia figure.

For more pairings and a full overview of how the leading coins compare, see our gold coins comparison hub.

Britannia vs American Eagle: FAQs

Is the Britannia or American Eagle better for UK investors?

For UK investors the Britannia is usually better because it is exempt from both VAT and Capital Gains Tax. The American Eagle is VAT-free but subject to CGT.

Are both coins the same purity?

No. The Britannia is 999.9 fine (24-carat) since 2013, while the American Eagle is 22-carat (916.7) gold alloyed with silver and copper.

Do they contain the same amount of gold?

Yes. A 1 oz version of either contains one full troy ounce (31.10 g) of pure gold; the Eagle is simply heavier overall due to its alloy.

Which has the higher premium?

The American Eagle usually carries a slightly higher premium than the Britannia.

Which is more durable?

The American Eagle's 22-carat alloy is harder and more scratch-resistant than the Britannia's softer 24-carat surface.

Buy Gold Britannia and Gold American Eagle coins

Whichever you choose, StoneX Bullion stocks both coins from multiple years of issue, with live pricing updated every 60 seconds and fully insured, discreet delivery across the UK and Europe.

Browse our Gold Britannia and Gold American Eagle coins, or explore our full range of gold coins to start building your portfolio today.