Crown of Queen Mary
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The crown was made by Garrard & Co and contains around 2,200 diamonds. It contained the Koh-i-Noor diamond as well as Cullinan III and Cullinan IV. In 1914 they were replaced by crystal models. It contained eight half-arches.
Unlike many earlier coronation crowns, it was specially constructed so that its arches could be removed, allowing it to be worn as a circlet.
Since Queen Mary's death on 24 March 1953 her crown has remained unworn.
Queen Mary's Delhi Durbar diadem was inherited by Queen Elizabeth The Queen Mother and is now the personal property of Queen Elizabeth II. This tiara with all the major stones removed, was lent by the Queen to the Duchess of Cornwall during a state dinner at Buckingham Palace.