The Imperial State Crown is a ceremonial crown worn by the British monarch during the State Opening of Parliament. It is made of gold and adorned with precious gemstones, including the famous Cullinan II diamond and the Black Prince's Ruby. The crown symbolizes the authority and dignity of the monarchy. Originally created in 1838 for the coronation of Queen Victoria, the crown has undergone several modifications over the years. It features a velvet cap and a gold band, representing the unity of the nation. The crown is an important part of the British royal regalia, showcasing the history and tradition of the monarchy.