The sovereign is a British gold coin with a nominal value of one pound sterling (£1) and contains 0.2354 troy oz of pure gold. Struck since 1817, it was originally a circulating coin that was accepted in Britain and elsewhere in the world; it is now a bullion coin and is sometimes mounted in jewellery. In addition, circulation strikes and proof examples are often collected for their numismatic value. In most recent years, it has borne the design of Saint George and the Dragon on the reverse; the initials () of the designer, Benedetto Pistrucci, are visible to the right of the date.
The coin was named after the English gold sovereign, which was last minted about 1603, and originated as part of the Great Recoinage of 1816. Many in Parliament believed a one-pound coin should be issued rather than the 21-shilling guinea that was struck until that time. The Master of the Mint, William Wellesley Pole had Pistrucci design the new coin; his depiction was also used for other gold coins. Originally, the coin was unpopular because the public preferred the convenience of banknotes but paper currency of value £1 was soon limited by law. With that competition gone, the sovereign became a popular circulating coin, and was used in international trade and overseas, being trusted as a coin containing a known quantity of gold.
The British government promoted the use of the sovereign as an aid to international trade, and the Royal Mint took steps to see lightweight gold coins withdrawn from circulation. From the 1850s until 1932, the sovereign was also struck at colonial mints, initially in Australia and later in Canada, South Africa and India—they have again been struck in India for the local market since 2013, in addition to the production in Britain by the Royal Mint. The sovereigns issued in Australia initially carried a unique local design but by 1887, all new sovereigns bore Pistrucci's George and Dragon design. Strikings there were so large that by 1900, about forty per cent of the sovereigns in Britain had been minted in Australia.