The Gold Britannia is the official gold bullion coin of Great Britain, according to JM Bullion, with the series first introduced by the Royal Mint in 1987. JM Bullion’s current Gold Britannia catalogue includes 1 oz, 1/2 oz, 1/4 oz and 1/10 oz gold coins, together with Gold Britannia tubes. The company states that the Britannia series was originally issued in 22-karat gold before the Royal Mint upgraded the coins to 24-karat .9999 fine gold in 2013. For the JM Bullion UK proposition, this establishes the Britannia as a dedicated British bullion category within the company’s wider international gold-coin offering.

JM Bullion’s current listings also document the continuing development of the series. Its 2026 1 oz Gold Britannia is described as containing 1 troy ounce of .9999 pure gold, carrying a £100 face value, and featuring King Charles III on the obverse with Britannia on the reverse. JM Bullion further identifies four enhanced security elements introduced to the Britannia design, including a latent feature, surface animation, tincture lines and micro-text. With the series continuing through annual releases and multiple weights, JM Bullion UK can present Gold Britannias as a specifically British bullion choice within its established physical-gold range.