The Sovereign: two centuries, one weight

Hold a gold sovereign in your palm. A current one, struck at Llantrisant in Wales, carries the specifications the Royal Mint publishes today: 7.98 grams, 22.05 millimetres across, 916.7 fine. Set beside it a sovereign from the reign of George III and you have the same saint, the same dragon and the same weight of gold. The Royal Mint Museum puts it plainly: the sovereign made now has "the same specifications as those introduced in 1817", regulated to five decimal places by law, still holding a nominal value of one pound.

Everything else about British money has changed in those two centuries. This has not.

The king who named a coin after himself

On 28 October 1489, records the Royal Mint Museum, Henry VII gave authority for a new gold coin worth twenty shillings, weighing 15.55 grammes, or 240 grains, to the fine gold standard established under Edward III. It was England's first pound coin and, in the Museum's words, "by a distance, the largest coin yet issued in England". He named it the sovereign, a title the Museum calls "amongst the most personal of names Henry could have chosen". The king sat enthroned on the obverse, the Royal Arms inside an enveloping double rose on the reverse, Lancaster and York made one. This was never market stall money.

The Royal Mint's own account describes surviving pieces as struck from 23 and one third carat gold, approximately 15.3 grams and approximately 40 millimetres, and states that only two 1489 sovereigns remain outside museums and institutions. Of the very first type the Museum knows a single specimen, in the British Museum.

Then it vanished. Early in his reign James I replaced it with a coin called the unite, promoting his union of the English and Scottish crowns, and the sovereign "was not to appear again for 200 years". A coin can die and come back.

The arithmetic that fixed it forever

It came back out of wreckage. After the Napoleonic wars the Coinage Act 1816 rebuilt British money on one foundation: gold, says the Royal Mint, "was designated as the sole legal standard of currency value", with silver redefined as token currency, legal tender "only for purchases up to 40 shillings". That is the Act we met in The Gold Standard and Its Fall. The sovereign is that Act made physical.

The settlement set one ratio, stated exactly by the Mint: "One troy pound of standard 22-carat gold was equal to £46, 14 shillings, and 6 pence, or 44 and a half guineas." Everything else is arithmetic. A troy pound is 5,760 grains; divide by 46.725 and you get 123.274478 grains to the pound sterling, which is 7.98805 grams. At eleven twelfths fine that is 7.32238 grams of pure gold, 0.2354 of a troy ounce. The statute table is published only as a page image, so we give that figure as arithmetic from the Mint's own ratio, corroborated by the Museum's five decimal places and the Mint's published 7.98 grams at 916.7.

The new twenty shilling coin "became currency under a proclamation passed on 1 July 1817", struck at Tower Hill under William Wellesley Pole, Master of the Mint and brother to the Duke of Wellington: the great ceremonial coin reborn at half the size, as a working pound.

A Roman, a cameo and a dragon

Benedetto Pistrucci, born in Rome in 1783, came to England as a gem engraver and entered the Royal Mint's orbit shortly after Waterloo. He struggled at first to engrave directly into steel, mastered it, and made the design entirely his own. He was about thirty four.

The first sovereigns showed the saint with a broken lance and an old French motto. In 1821, the Mint records, "the old French inscription was removed, the broken lance held by the saint replaced with a sword and the date was added below the design". It was retired in 1825 for the Royal Arms, reinstated in 1871 under Victoria, and "has now appeared on Sovereigns struck for every monarch since the reign of Queen Victoria". Pistrucci's postscript is the better story: the post of Chief Medallist was created for him in 1828, his Waterloo Medal took until 1849, and the dies were so large they could never be hardened, so not one medal was struck in his lifetime. The small coin he was paid a hundred guineas for is still being struck.

The chief coin of the world

Gold was found in New South Wales, and rather than ship every ounce home Britain shipped the Mint out. The first branch opened in Sydney in 1855, striking a local coin inscribed "SYDNEY MINT ONE SOVEREIGN" and "AUSTRALIA"; from 1871 Australia won the right to strike London's designs, separated only by a mint mark. Melbourne followed in 1872 with an M, Perth in 1899 with a P.

Between 1855 and 1931 the three Australian mints struck more than 400 million sovereigns, and their coins made up around 40 per cent of all sovereigns circulating in Britain at the start of the twentieth century. Perth alone made more than 106 million sovereigns and 735,000 half sovereigns. Ottawa struck fewer than a million before ending in 1919. The Bombay Mint Proclamation of 21 December 1917 authorised a branch that lasted a single year, over a million sovereigns all dated 1918 and marked with a small I, closing when no blanks were forthcoming. Pretoria began in 1923 marked SA, peaked in 1928 at more than 18 million, and issued its last in 1932.

Six mint marks, four continents, one specification, because every coin held the same 7.32238 grams.

The week the gold went quiet

By the outbreak of the First World War, says the Royal Mint, "the total production of Sovereigns and Half-Sovereigns in London and abroad since 1817 totalled £900 million, with the circulation of gold almost £100 million in Britain alone".

Within days of the declaration of war Parliament passed the Currency and Bank Notes Act 1914. Treasury notes appeared, nicknamed Bradburys after Sir John Bradbury, Permanent Secretary to the Treasury, whose signature they carried; the Gallipoli Association dates the first one pound note to Friday 7 August 1914, the ten shilling note about a week later. The Bank of England "issued banknotes instead of Sovereigns to those withdrawing cash", and Lloyd George cast asking for gold as essentially unpatriotic. It worked: by the summer of 1915 sovereigns were "scarcely seen on the streets of London as a form of payment".

Notice what did not happen. No law abolished the coin. It was asked, politely and patriotically, to leave. London struck its last of the age in 1917, many shipped to the United States to buy goods and munitions and melted there, and 90 million more were melted down in 1930 and 1931 to make gold bars. The year 1933 was the first in nearly a century in which no sovereigns were struck anywhere in the UK or Commonwealth.

It returned a second time for a reason worth savouring. In 1957 the Government resumed regular production "in response to a growing demand made evident by counterfeiters' success". Forgers had proved the market. And in November 1975 the last coin struck at Tower Hill, the site where the modern sovereign was born, was a gold sovereign.

The verdict on the scales

The sovereign is legal tender today at one pound, which has a consequence in the tax authority's own manual. HMRC's Capital Gains Manual at CG78305 states: "Sovereigns minted in 1837 and later years and Britannia gold coins are currency but, like all sterling currency, are exempt because of TCGA92/S21 (1)(b)." The same page notes that "Coins (including pre-1837 sovereigns) which are not legal tender are not currency". That is the law as HMRC states it: general information, not tax advice, and no recommendation of any kind.

Now the two numbers. Face value: one pound, fixed in 1817. Gold content: 7.32238 grams, fixed in 1817. At the sterling gold price on our own markets feed at 07:10 on 27 August 2026, £108.94 a gram, that content is worth about £798.

Nobody devalued the coin. Nobody could. What moved was the pound it was denominated in, the story we told in Gold vs the Pound in Your Pocket. Kings and queens changed, an empire rose and went, the gold left the nation's pockets and paper took its place, and through all of it one small coin held to five decimal places, exactly the same.

Gold does not need anyone to keep its promise. It never made one.

If you hold sovereigns or gold of your own, our Sell with Chapman Gold page shows the published tiers we buy on.

Sources: The Royal Mint, the Royal Mint Museum, The Perth Mint, HM Revenue and Customs (Capital Gains Manual CG78305), legislation.gov.uk and the Gallipoli Association. Every figure above links to the institution that publishes it. Nothing here is financial or tax advice.