Princess Catherine, the Princess of Wales, is poised to inherit Queen Elizabeth II's iconic, £800,000 diamond diadem – a crown featured on British banknotes and stamps! This stunning piece, adorned with 1333 diamonds including a rare yellow brilliant, boasts a rich history spanning centuries and multiple queens. When Prince William ascends the throne, expect to see Catherine wearing this breathtaking heirloom. Let's delve into the captivating story of this extraordinary crown.