London, England. 12th May 1937. King George VI and Queen Elizabeth (the Queen Mother) pictured wearing their crowns and coronation robes as they stand on the balcony of Buckingham palace after their coronation in 1937. [Getty Images]

London, England, 12th May 1937, King George VI and Queen Elizabeth (the Queen Mother) pictured wearing their crowns and coronation robes as they stand on the balcony of Buckingham palace after their coronation in 1937 (Photo by Popperfoto via Getty Images/Getty Images) — see more

London, England, 12th May 1937, King George VI and Queen Elizabeth (the Queen Mother) pictured wearing their crowns and coronation robes as they stand on the balcony of Buckingham palace after their coronation in 1937 (Photo by Popperfoto via Getty Images/Getty Images)

LONDON, UNITED KINGDOM - APRIL 19: The Crown Of Queen Elizabeth The Queen Mother (1937) Made Of Platinum And Containing The Famous Koh-i-noor Diamond Along With Other Gems. (Photo by Tim Graham Photo Library via Getty Images) — see more

LONDON, UNITED KINGDOM - APRIL 19: The Crown Of Queen Elizabeth The Queen Mother (1937) Made Of Platinum And Containing The Famous Koh-i-noor Diamond Along With Other Gems. (Photo by Tim Graham Photo Library via Getty Images)