In 2018, for the BBC documentary The Coronation, the late Queen Elizabeth II reflected on the Imperial State Crown, which she had worn at her coronation in 1953 and every year for the State Opening of Parliament. She spoke with her characteristic dry humor and honesty, explaining that the crown-set with nearly 3,000 gems, including the Cullinan II diamond, Black Prince's Ruby, and St. Edward's Sapphire-was so heavy (about 2.3 pounds) that wearing it was a challenge. The Queen admitted she couldn