A tiara isn’t exactly an everyday accessory, even for British Royals who are preceded by a title like 'Princess,' 'Duchess,' or 'Queen.'
In reality, the diamond-encrusted topper is reserved only for very special occasions. In Kate Middleton’s eight years as the Duchess of Cambridge, she’s donned a tiara fewer than a dozen times, reported InStyle.
The most notable tiara moment for Kate was of course at her 2011 royal wedding, upon which she wore the Cartier Halo Scroll tiara. It was an 18th birthday present to Queen Elizabeth from her father, King George VI.
The Duchess of Sussex, Meghan Markle, most famously wore her first tiara not too long ago, at her famous May 2018 wedding to Prince Harry. She opted for the Queen Mary Diamond Bateau, which was passed down to Queen Elizabeth from Queen Mary in 1953.
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But as for Princesses Beatrice, who, like her sister, was born into royalty as opposed to marrying into the family as Kate and Meghan did, it is not customary to wear a tiara.
Tiaras are traditionally reserved for married members of the British royal family. Eugenie wore her first tiara to her October 2018 wedding to Jack Brooksbank, and Beatrice will likely wear her first during her upcoming wedding to Edoardo Mapelli Mozzi.
Though this is the traditional approach, there have been exceptions to the rule throughout history. Queen Elizabeth’s only daughter, Princess Anne, wore one at the state opening of Parliament years before she wed her first husband, Mark Phillips.
The Queen’s sister, Princess Margaret, also donned the accessory ahead of her marriage to Antony Armstrong-Jones — in fact, she wore one often.
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