Imperial State Crown is the most famous of the Crown Jewels of United Kingdom. This was re-made for the coronation of The Queen Elizabeth II’s father, King George VI, in 1937 and is set with over 3,000 gems. The stones were all transferred from the old Imperial Crown, which had been re-made on a number of occasions since the 17th century, most recently for Queen Victoria in 1838. This crown incorporates many famous gemstones, including the diamond known as the Second Star of Africa (the second largest stone cut from the celebrated Cullinan Diamond), the Black Prince’s Ruby, the Stuart Sapphire, St Edward’s Sapphire and Queen Elizabeth’s Pearls. The Sovereign traditionally wears the Imperial State Crown at the conclusion of the coronation service, when leaving Westminster Abbey. It is also worn for the State Opening of Parliament.