1/10 oz Britannia Charles III Gold Coin | 2027

Britannia 1/10 oz 2027 — a tenth of an ounce in the anniversary year

The 2027 tenth-ounce Britannia holds 3.11 g of 999.9 fine gold on a flan 16.5 mm across and 1.17 mm thick, with a £10 face value. Ten coins make one troy ounce, making it the finest unit among the four 2027 Britannia sizes we carry. Despite the small format, the reverse carries the wave mark with the number 40 for 40 years of the gold Britannia (1987-2027).

Technical specification

Why this coin

• Divisibility — 10 coins = 1 ounce; when selling, you release exactly as much gold as you need, in 3.11 g steps.
• Low entry point — one coin costs a fraction of a one-ounce coin and is still 999.9 gold from an LBMA-accredited mint.
• Full security on 16.5 mm — latent image, tincture lines, micro-text and background animation are all present on this small flan.
• The 40th anniversary year — the 2027 date and 40 mark set this coin apart from tenth-ounce Britannias of earlier years.
• As a gift — small, light and with a concrete story: 40 years of the series and the portrait of the new monarch.

The series at a glance

The gold Britannia has 40 years of issues behind it: The Royal Mint launched it in 1987. Until 2012 it was 22 carat (916.7); since 2013 it has been struck in 999.9 gold. In 2021 the die gained optical security features, and later the portrait of King Charles III took over the obverse.

Obverse — Charles III on a 16.5 mm flan

The portrait of Charles III by Martin Jennings keeps the same layout on the tenth-ounce as on the larger sizes, simply scaled down. The M.J. initials below the bust measure a fraction of a millimetre here — you will not read them without a loupe.

Reverse — Britannia and the hidden 40

The Britannia of Philip Nathan — with trident and Union Flag shield — fills most of the reverse field. The 2027 year adds the wave privy mark with the number 40 and a background designed so that the 40 appears in the light and changes with movement. On 16.5 mm the effect is subtle: it shows best under a point light source with slow turning.

The security features used on the Britannia since 2021 are complete at this size too: a latent image switching between padlock and trident, tincture lines on the shield, the micro-text DECUS ET TUTAMEN and the surface animation of the background.

What to consider before buying

• Highest cost per gram in the series. Of the four Britannia sizes, the tenth-ounce usually carries the highest premium per gram of gold — divisibility comes at a price. If you are buying larger amounts for the metal alone, the 1 oz coin costs less per gram.
• Small, thin flan. At 1.17 mm and 3.11 g of soft 999.9 gold, the coin scratches and goes missing easily. Keep coins in capsules or a tube.
• Confusion with other tenths. The American Gold Eagle 1/10 oz measures 16.5 mm, the Krugerrand 16.55 mm, the Philharmonic 16 mm. You can tell the Britannia by its £10 face value, the NATHAN signature and the 40 mark.
• CGT in the UK only. The Capital Gains Tax exemption applies to UK tax residents.

Why GoldInvest24

We offer coins from LBMA-accredited mints — other tenth-ounce coins are under 1/10 oz gold coins, larger sizes under gold coins. Parcels are insured and discreetly packed.

Comparison: 1/10 oz coins

Frequently asked questions

How much gold does the Britannia 1/10 oz 2027 contain?

The coin contains 3.11 g of 999.9 fine gold, one tenth of a troy ounce. It measures 16.5 mm, is 1.17 mm thick and has a £10 face value.

Why is the price per gram higher than for the Britannia 1 oz?

The cost of striking and handling one coin is spread over less gold. That is why ten 1/10 oz coins usually cost more than one 1 oz coin with the same metal content.

Does the Britannia 1/10 oz have the same security features as the ounce?

Yes. It has the padlock/trident latent image, tincture lines, the micro-text DECUS ET TUTAMEN and a background animation. On 16.5 mm they are smaller, so you need a loupe for the micro-text.

Does the 1/10 oz coin carry the anniversary 40 mark?

Yes. The 2027 year has a wave privy mark with the number 40 and the 40 in the background, marking 40 years of the gold Britannia since 1987.

Is the Britannia 1/10 oz VAT-exempt?

Yes. It is a 999.9 fine gold coin and VAT-exempt under EU Directive 2006/112/EC (art. 344-356). The current gold price is on the gold price page.