St Edwards crown is made of 22-carat-gold, is about 30cm (12in) tall, weighs 4.9lb (2.23kg) and is decorated with 444 precious and semi-precious stones, including 345 rose-cut aquamarines, 37 white topazes, 27 tourmalines, 12 rubies, seven amethysts, six sapphires, two jargoons, one garnet, one spinel and one carbuncle.
Aside from an appearance on the high altar at Westminster Abbey for the 60th anniversary of the Queen’s reign, the crown has been locked in the Tower of London ever since her coronation.
As of 2019, the value of the jewels and gold used in the making of St Edward’s Crown was estimated to be more than £3.6million.
It was used for the coronations of Charles II (1661), James II (1685) and William III (1689).
The tradition was then revived in 1911 by George V and went on to be used for the coronations of George VI (1937) and Elizabeth II (1953).