Fit for a princess.

By Michelle Darrisaw
July 13, 2017
Kate Middleton at State Banquet in Tiara
Credit: @PARoyal

She may be chic, elegant, and the mother to the heir to the British throne, but Kate Middleton just proved she isn't above a few hand-me-downs.

In an Instagram photo that emerged yesterday of the Duchess of Cambridge at a state dinner at Buckingham Palace, hosted by Queen Elizabeth II to welcome King Felipe and Queen Letizia of Spain, Kate Middleton donned the most stylish and glamorous secondhand accessories: a bejeweled headpiece and pearl pendant earrings that once belonged to Princess Diana, as well as a cascading ruby and diamond necklace from the Queen's vault. That's right, when Kate needed standout accessories to complement her pink lace Marchesa gown, she borrowed from the closets of two of the world's most poised and revered women.

We Southern belles know all about playing dress up in Mama's clothing and her heirloom pearls. And the crown Kate wore to the State Banquet has a long lineage, too, rooted in the timeless "something borrowed" tradition. You see, the Princess of Wales' iconic Cambridge Lover's Knot tiara—also called the Lover's Knot—was actually a wedding gift from Queen Elizabeth II to Diana in 1981.

Kate Middleton in Car with Tiara
Credit: Max Mumby/Indigo/Contributor/Getty Images

The tiara boasts 19 diamond arches, with pearls dangling from each embellished curve. It's also well over a century old, but like the Queen, the hand-crafted sentiment is aging quite gracefully. So much so, it's held up long enough for Kate to wear multiple times since marrying Prince William.

Princess Diana Wearing Lover's Knot Tiara
Credit: Anwar Hussein/Contributor/Getty Images

It's clear that Duchess Kate is following in her deceased mother-in-law's royal, and ever so graceful, footsteps. Like Princess Diana (or the "People's Princess" as she was affectionately called), Kate's everywoman appeal continues to grow, whether she's dressed down in sneakers, volunteering and supporting charities, wearing fashionable yet affordable clothes, or even repeating the same outfits and jewelry.

WATCH: Raising a Little Princess: All About Charlotte's Amazing Childhood

When you're married to a future king, there's a lot to live up to. But thankfully, Kate is taking up Lady Diana's mantle, and stateside fans are happy to have someone just as relatable (and stylish) across the pond again.