But she’s by no means the first royal to rebel against royal traditions.
Princess Margaret, the Queen’s younger sister, shunned tradition on her wedding day in 1960 and wore a tiara that *wasn’t* from the royal vault.
It’s customary for female members of the royal family to borrow tiaras from the royal vault for their wedding day.
But Princess Margaret decided to buy her own tiara, bidding £5,500 on a diamond tiara at an auction in 1959. And she bought it before she even got engaged. She even wore it several times before her wedding.
The tiara is also pretty cheap compared to most of the tiaras in Queen Elizabeth’s collection - take Meghan’s, it is estimated to be worth over one million pounds, whereas Margaret’s is said to now be worth around £40k.
Princess Margaret’s tiara originally belonged to the wife of the 3rd Baron Poltimore (whose name was also Margaret).
Princess Diana also broke this major rule, wearing the Spencer tiara (which belongs to her own family) when she married Prince Charles in 1981.