Camilla will wear Queen Mary’s crown at her coronation in May

Camilla, wife of Britain’s King Charles, will wear Queen Mary’s crown at her coronation in May, Buckingham Palace said, avoiding wearing a crown with the disputed 105-carat Koh-i-Noor diamond that her India demanded to be returned.

The Koh-i-Noor, one of the largest cut diamonds in the world, was taken from India by the East India Company during the colonial era and presented to Queen Victoria. It is placed in a wreath last worn by Charles’ grandmother during her coronation.

Pakistan, the British-ruled part of India, and Afghanistan have also claimed ownership of it since India’s independence in 1947.

Camilla will wear the Queen Mary crown, commissioned and worn by King George V’s consort for the 1911 coronation. Some changes will be made, the palace said, to insert jewelery unique to the occasion and reflect its own style.

“Her Majesty’s choice of Queen Mary’s Crown is the first time in recent history that an existing crown will be used for the coronation of a consort, rather than a new commission being made, in the interests of sustainability and efficiency,” said the Buckingham Palace in a statement.

Charles automatically became king of 15 kingdoms, including Canada, New Zealand and Australia, on the death of his mother Queen Elizabeth in September, but the official coronation of him and Queen Consort Camilla will take place on May 6 at the Abbey of Westminster, London.

The Queen Mary’s crown will be reset with Cullinan III, IV and V diamonds, in honor of the late Queen Elizabeth, the palace said. The diamonds were part of her personal collection and were often worn by her as brooches.

Four of the crown’s eight detachable arches will also be removed, the palace said. The crown was withdrawn from display at the Tower of London for renovations to be carried out.

The last time a queen consort’s crown was reused was in the 18th century.