Rather than abandon his plans to marry Simpson, he chose to abdicate in favour of Albert, who reluctantly became King in his place on 11 December 1936 under the regnal name of George VI. George VI and Elizabeth were crowned King and Queen of Great Britain, Ireland and the British Dominions, and Emperor and Empress of India in Westminster Abbey on 12 May 1937, the date previously scheduled for Edward VIII. Elizabeth's crown was made of platinum and was set with the Koh-i-Noor diamond.