Princess Eugenie has no shortage of head-turning hats and fascinators in her accessories collection, but there's one princess-worthy headpiece that this soon-to-be bride has surprisingly never sported—a tiara.
"Only married ladies wear tiaras," etiquette expert Grant Harrold told BBC earlier in the year. "For married ladies it was a sign of status and would show you were taken and not looking for a husband. For the gentleman it was a clear sign not to make advances toward the lady in question."
There's also further symbolic meaning behind the age-old rule, according to jewelry expert Geoffrey Munn.
"Any woman may wear one, but ancient tradition has it that they must be a bride or already married," Munn told Town & Country. "The tiara has its roots in classical antiquity and was seen as an emblem of the loss of innocence to the crowning of love."
As was also the case with Meghan Markle before she married Prince Harry. Aside from her high school homecoming, the recent addition to the royal family didn't don this regal accessory until her actual wedding day, when she opted for Queen Mary's diamond bandeau tiara.
If Princess Eugenie does decide to commemorate her new marital status and wear a tiara as she weds Jack Brooksbank on October 12 (the first time she would be able to do so), the 28-year-old royal may opt for the same one that her mother, Sarah Fergsuon, sported down the aisle—the York tiara.
"Traditionally when brides get married, they normally wear the family tiara, which in this case would be the York Tiara," Harrold told Daily Mail. He also adds that Queen Elizabeth and Prince Philip were believed to have gifted Fergie the tiara in 1986 as a wedding present.
Based on Eugenie's track record for over-the-top headgear, we have a feeling she'll pull out all the stops on her wedding day if she chooses to add a tiara to her bridal ensemble. She might as well, anyway, since she'll be reaching an important royal accessory milestone.