Camilla, Queen Consort, will wear Queen Mary's crown at King Charles' Coronation on Saturday 6th May 2023, Buckingham Palace has announced. This is the first time since the 18th century that an existing crown will be used for the Coronation of a Consort.

In a bid to be more sustainable, some minor changes and additions will be undertaken by the Crown Jeweller that reflect the Queen Consort's individual style. The crown has been removed from display at the Tower of London for modification work and will be reset with the Cullinan III, IV and V diamonds — part of Queen Elizabeth II's personal jewellery collection.

The Palace explains: "The Cullinan diamonds have been set into Queen Mary's Crown on previous occasions. Cullinan III and IV were set temporarily in the Crown for the 1911 Coronation, and the Cullinan V was inserted when the Crown was worn as a regal circlet at King George VI's Coronation in 1937."

Elsewhere, four of the crown's eight detachable arches will be removed to create a different impression to when the Crown was worn by Queen Mary at the 1911 Coronation. It also won't contain the rare diamond, Koh-i-Noor.

King Charles III will wear the St Edward's Crown when he is officially declared as the King during his Coronation. This will be the first and only time that Charles will wear this particular crown. Made of solid gold and weighing five pounds, it contains 444 gemstones, including rubies, sapphires, garnets and tourmalines.

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