- 1988 Gold Britannia 1 oz (£100 coin, 31.104g)
- 1988 Gold Britannia 1/2 oz (£50 coin)
- 1988 Gold Britannia 1/4 oz (£25 coin)
- 1988 Gold Britannia 1/10 oz (£10 coin)
The Gold Britannia is a British 1 troy ounce (31.104 g) Gold coin, minted by the Royal Mint. It has a millesimal fineness of 0.9999 making it a 24 carat gold coin. It is denominated as £100.
Gold Britannia’s were first minted in 1987, originally in 22 carat, 0.917 gold. The coin itself weighed 34.05 g (31.104 g gold and the rest copper) and had a diameter of 32.69 mm.
From 2013 the coin became a larger but thinner coin, with a diameter of 38.61 mm (the same as a crown). It became (literally) pure gold; the new coin weighs 31.104 g and has a gold content of 31.104 g.
The coin also spurned a family of fractional children: 5 oz, 1 oz, 1/2 oz, 1/4 oz, 1/10th oz, 1/20th oz. The Silver Britannia was launched in 2013.
The obverse shows the Monarch’s head (Queen Elizabeth II) and the reverse is the eponymous Britannia in various forms. Britannia is the female personification of Great Britain and has been part of British coinage for a long time.
From a numismatic point of view these are beautiful coins, and due to their tax exemptions make a very good investment.
 | 1988 Royal Mint 4 x Coin Gold Proof Britannia Collection Box & COA - NO COINS £ 19.95 |
 | 1987or 1988 royal mint certificate for a 4 coin proof gold britannia set x 1 £ 4.99 |
 | 1987 Royal Mint Britannia Gold Proof 2-coin Set 1/4 oz & 1/10 oz Fine gold £ 1,586.68 |
 | 1997 Proof Gold Britannia 4 Coin Set Boxed £ 7,873.55 |
 | 1998 Proof Gold Britannia 4 Coin Set Boxed £ 7,779.83 |
 | 2005 Proof Gold Britannia 4 Coin Set Boxed £ 7,660.55 |
 | 1999 Proof Britannia Gold 4-Coin Set Boxed £ 8,066.31 |
 | 2000 Proof Gold Britannia 4 Coin Set Boxed £ 8,066.31 |
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