Princess Eugenie Wore A Never-Before-Seen Tiara For Her Royal Wedding

She wore an emerald headpiece that belonged to her great-grandmother as her "something old."

Princess Eugenie of York married Jack Brooksbank on Friday wearing a BEAUTIFUL tiara from the royal family's collection.

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Okay, yes, her dress — designed by Peter Pilotto and Christopher De Vos — was gorgeous.

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But just LOOK at this shiny, sparkly beauty!

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Buckingham Palace confirmed that the tiara was lent to Princess Eugenie by her grandmother, Queen Elizabeth.

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The stunning piece is known as the Greville Emerald Kokoshnik Tiara and once belonged to Queen Elizabeth, the Queen Mother.

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It's made of "brilliant and rose cut diamonds pavé set in platinum, with six emeralds on either side."

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The tiara was made by French jewelry house Boucheron in 1919 for Dame Margaret Greville, a society matron and philanthropist.

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Margaret Greville photographed in 1900.

The emerald piece was made in the fashionable kokoshnik style, popularized by the Russian Imperial Court.

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Greville left her impressive jewelry collection — including the kokoshnik tiara and the one pictured below— to then-Queen Elizabeth upon her death in 1942.

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The Greville Emerald Kokoshnik tiara worn by Princess Eugenie hasn't been seen on a royal head in recent memory.

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But this piece, known simply as the Greville Tiara, is often worn by Camilla, Duchess of Cornwall.

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TL;DR: Princess Eugenie chose a gorgeous, historical, and somewhat unconventional tiara for her big day.

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Here's to jewels! And the happy couple, of course.

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