The Imperial State Crown boasts nearly 3,000 precious stones, including one of the most famous diamonds in the world. By Katie Sewell 06:00, Mon, Sep 19, 2022 | UPDATED: 11:23, Mon, Sep 19, 2022 ...

The Imperial State Crown adorned by Queen Elizabeth II after her coronation. She waves to the crowd from the gates of Buckingham Palance with her husband, Prince Philip. (PA Images via Getty Images) ...

The Imperial State Crown is adorned with 2,901 precious stones, with some of them having their own unique origin and history. Black Prince's Ruby.