Only months after she was unshackled from the palace’s protocols, Princess Diana made a bold statement at the 1996 Met Gala by appearing in a provocative revenge dress.

The inky-colored lingerie-inspired dress, that the late princess decided to wear without a bra, “was a reflection of how she was already feeling” and the liberation she experienced since divorcing the now king.

Keep reading to learn more about Diana’s jaw-dropping look at the New York event!

Before the late Princess of Wales slid into a stretch limo, that took her from New York’s Metropolitan Museum to her room at the Carlyle Hotel, she sipped on champagne, dined with the world’s top designers, and completely shocked event goers with her unroyal attire.

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After 15 years of marriage, Diana was living free, untethered from the strict rules of the royal family. Her divorce from the now King Charles III was finalized in August of the same year.

Lingerie-inspired dress

At her first ever Met Gala appearance, Diana wore a lingerie-inspired silk navy-blue slip dress with black lace and paired the ensemble with a matching silk robe. She accessorized the outfit with sparkling sapphire earrings and a choker necklace, that she designed from a sapphire brooch gifted to from the Queen Mother on her wedding day to Charles.

But it wasn’t the sapphire jewelry that was turning heads that evening.

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According to Eloise Moran, author of “The Lady Di Look Book: What Diana Was Trying To Tell Us Through Her Clothes,” Diana’s ensemble was a “revenge” look.

“That was one of her most shocking dresses. But I thought she looked fabulous. She just looks so happy and confident,” Moran told Yahoo. “I think she was embracing it and enjoying it. She knew she could never get rid of the attention and the spotlight on her, but I think she was positioning it in a different way, as a kind of international megastar, Marilyn Monroe-type icon rather than a member of the royal family. And I think the dress really reflected that.”

Bra-less

Fashion editor Hilary Alexander says it’s not surprising to see celebrities “wearing underwear as outerwear, but for a princess to do it at a formal occasion is a different matter.”

Speaking of Diana’s midnight blue dress, that cost about $12,5000 at the time, she says, “It is a very sensual rather than overly sexy dress, and it is a million miles away from the more formal outfits she usually picks.”