Images are illustrative. The piece you receive may differ in year, design, serial number or packaging.
Royal Mint Britannia Gold Coin
1 oz Gold • 2026 Issue
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The Britannia is a gold bullion coin of The Royal Mint of the United Kingdom, and the 1 oz coin is its flagship size. Each coin holds one troy ounce of .9999 fine (24 karat) gold. The Britannia side shows Britannia in a helmet, standing with a trident and a shield bearing the Union flag, set against a finely lined wave-pattern background. The other side carries the portrait of King Charles III by Martin Jennings. The coin pictured is the 2026 issue. It is legal tender in the United Kingdom with a face value of £100.
Product Details
- Pure gold content
- 1 troy oz (31.1 g)
- Fineness
- .9999 (999.9, 24 karat)
- Thickness
- Approx. 2.7 mm
- Diameter
- 32.69 mm
- Edge
- Reeded
- Face value
- £100 (United Kingdom)
- Year
- 2026 issue (as pictured)
- Produced by
- The Royal Mint, United Kingdom
- Legal tender
- United Kingdom
Published specifications for the 2026 1 oz Britannia gold coin. Coin thickness is not listed because the figures published by dealers differ. The coin you receive may be a different year from the 2026 coin pictured.
Design & Inscriptions
- Britannia side
- Britannia in a helmet, standing with a trident in one hand and an olive branch and a shield bearing the Union flag in the other, over a finely lined wave-pattern background. BRITANNIA 2026 runs along the upper left, 1oz at the top and 999.9 FINE GOLD along the right, with the name NATHAN at the bottom
- Portrait side
- The left-facing portrait of King Charles III by Martin Jennings, with CHARLES III D G REX F D along the top and 100 POUNDS at the lower right, on a fine guilloche-patterned background
- Security features
- Dealers list a latent image in the design that shifts between a trident and a padlock, surface animation in the wave background, micro-text (the Latin motto DECUS ET TUTAMEN) and tincture lines on the Union flag
- Edge
- Reeded
Shipping & Returns
- Free shipping across the United States.
- Delivery timing and return terms will be confirmed before checkout.
Why Buy
- Issued by The Royal Mint, the mint of the United Kingdom.
- Its value follows the gold price: each coin holds one full troy ounce of gold.
- Struck in .9999 fine (24 karat) gold.
- Legal tender in the United Kingdom with a face value of £100.
- The design includes modern anti-counterfeiting features such as micro-text and a latent image.