Below, find some of the greatest royal tiaras in European and British history.
It came to Denmark in 1869, after the original owners descendant married the King of Denmark.
Comprised of 1,333 diamonds, its central diamond is four carats.
Photo: Getty Images
It consists of diamonds and a collection of 19 hanging pearls, all set in silver and gold.
Later it was handed down to Queen Elizabeth.
She then eventually lent it to her daughter-in-law, Princess Diana.
