The Britannia has been the Royal Mint’s flagship gold bullion coin since 1987, and the 2025 issue holds one troy ounce of .9999 fine gold with a £100 face value. Brilliant Uncirculated strikes come off the dies bright and fully detailed, which makes this a coin that stacks well and still looks good out of the tube.
Key Features:
- Purity and Weight: 1 troy ounce of .9999 fine gold (99.99% pure)
- Metal Type: 24-karat gold, struck by the Royal Mint
- Obverse Design: Left-facing portrait of King Charles III
- Reverse Design: Britannia standing with trident and Union shield
The obverse carries the uncrowned profile of King Charles III facing left, with the hair and jawline modeled in fine relief. The legend reads CHARLES III · D · G · REX · F · D · 100 POUNDS, running clockwise around the rim, and the field behind the portrait is filled with a finely engraved granular texture rather than left flat. Small designer initials sit at the base of the neck.
Britannia dominates the reverse, shown standing and facing right with her trident raised in one hand and a Union Jack shield braced at her side. Her cloak and gown fall in heavy folds around her, whipped as though caught in wind, and she stands on rough ground at the coin’s base. The legend reads BRITANNIA · 2025 on the left and 9999 FINE GOLD on the right, with 1 OZ at the top. Philip Nathan’s signature appears below her feet. The field behind her is worked with a rippling wave pattern and faint arcs of micro-lettering, part of the security features the Royal Mint builds into current Britannia dies.
The coin measures roughly 32.69 mm in diameter with a reeded edge and legal tender status in the United Kingdom. Bars and coins in this format trade close to spot, and the Britannia’s .9999 purity plus its UK legal tender standing make it VAT-free and CGT-exempt for British buyers.
Recognizable anywhere gold is traded, this is one of the easiest one-ounce coins to buy and resell. Order yours today and we will ship it insured in discreet packaging.




