The Koh-i-Noor diamond's controversial history in British coronation crowns.

The Koh-i-Noor diamond, which has been claimed by four countries and once adorned the crowns of Britain’s queens, will not be in the crown of Queen Camilla at the coronation due to its controversial history. The jewel was taken by British forces from India and has become a symbol of the empire’s rule over the country. India and Indians have been increasingly vocal about getting the jewel returned, leading to the decision not to include it in the crown.