This piece of royal jewellery is one of the most expensive and it's been worn my Princess Kate on many occasions.

Cartier Halo tiara - £1million The Princess of Wales ... to have been passed down through generations and worn by both Princess Margaret and Princess Anne. The expert said: "The Cartier halo ...

Press Association Kate wore the Cartier halo tiara on her wedding day in 2011, which has been passed down through generations and worn by both Princess Margaret and Princess Anne. Jewellery ...

Princess Diana wore a breathtaking wedding tiara the day she married Prince Charles in 1981. Who else wore the statement jewelry piece?

The Queen, however, was happy to lend her tiara out. Princess Margaret, Her Majesty’s sister, was the first to borrow the Cartier Halo tiara and it quickly became one of her go-tos when she was young.

Both Princesses Margaret and Anne wore tiaras ... while her long-rumored rival the Princess of Wales chose Queen Elizabeth II's Cartier Halo tiara. Read the original article on The List.

To celebrate Kate's 43rd birthday earlier this month, we revisit 43 of the looks that helped establish her as the undisputed ...