In 2015, Nyong’o looked like a dream in a long, white Calvin Klein gown that featured roughly 6,000 pearls. The showstopper was estimated to cost $150,000.

Shop a similar look: White cutout gown, $378, saksfifthavenue.com

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At the 1954 Oscars in New York City, Hepburn wore this tea-length Givenchy number. It was sold for a little under $131,300 in 2011.

Shop a similar look: White Audrey Hepburn-inspired flare, lace dress, $96, etsy.com

The late Princess Dianawore this Catherine Walker silk chiffon evening gown three times: once during a portrait sitting with photographer TerenceDonovan, to an opera premiere in 1989 and again at the 1997 Cannes Film Festival. It has been auctioned off with a winning bid of over $137,000.

Shop a similar look: Blue chiffon gown, $38, asos.com

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Related article: The Most Expensive Earring In The World Just Sold For $57.4 Million

In 1970, timeless beauty Taylor wore this chiffon number to the Oscars. And in 1999 it was sold for $167,500.

Shop a similar look: Faviana sleeveless ruched gown, $99, neimanmarcus.com

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At the 2007 Oscars, Blanchettwore a one-shouldered silver Armani Prive dress. All that shimmer (from Swarovski crystals) was worth $200,000.

Shop a similar look: Sequined one-shoulder gown, $180, milanoo.com

Each pearl on Beyoncé’s 2016 Met Gala custom-made latex dress was rumored to costbetween $6,000 and $8,000. The exact price is unknown, but given that she was covered from top to bottom in pearls, it’s safe to say, she belongs somewhere in our top 10.

Shop a similar look: Flower appliqué pearls zip-up evening gown, $200, dresswe.com

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Hilton wore this $270,000 August Getty gown, studded with 500,000 Swarovski crystals, to the Hollywood Beauty Awards this year.

Shop a similar look: Sleeveless sequin gown, $47, nordstrom.com

Designer Oscar de la Renta created the stunning gown that Amal wore in her 2014 wedding to the ever-handsome George Clooney.

Shop a similar look: Lace and chiffon A-line wedding dress, $449, davidsbridal.com

The Duchess of Cambridgealways looks stunning, but she really wowed us at the 2011 Royal Wedding. Kate’s dress, a lace-sleeved gown with an elegant train designed by Sarah Burton, cost $400,000.

Shop a similar look: Long sleeve, low-back wedding dress, $549, davidsbridal.com

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This infamous Breakfast At Tiffany’s 1961 dress designed by Givenchy, was sold in 2006 for nearly $80,000 short of a million dollars.

Shop a similar look: Black Audrey Hepburn vintage-style dress, $35, wsdear.com

In 1961, this gown was designed by Jean-Louis Berthaulto specifically for Monroe’s Madison Square Garden performance of “Happy Birthday, Mr. President” at John F. Kennedy’s 45th birthday party. According to TopTeny.com, the pink sequins gown was sold at an auction for $1.3 million big ones.

Shop a similar look: Happy Birthday Mr. President replica dress, $1,600, etsy.com

The hills came alive in the Sound of Music, and this iconic get-up Andrews wore during that famous number was sold for over 1.5 million dollars.

Shop a similar look: Maria’s alpine dress, $145, missem.com

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Made by Christian Dior Haute Couture, this embroidered piece was worn by Kidman to the 69th Academy Awards in 1997.

Shop a similar look: Sleeveless green evening dress, $49, metisu.com

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Lawrence looked stunning at the 2013 Oscars in a Dior Couture blush ball gown. She tripped while ascending the stairs to receive her award for Best Actress for her role in Silver Linings Playbook. She joked to Vogue in an interview, “Was that on purpose? Absolutely.”

Shop a similar look: Strapless floral gown, $354, saksfifthavenue.com

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Related article: This Is The Most Expensive Handbag Ever Sold

According to Marie Claire, when this famous number first seen in the 1955 movie The Seven Year Itch was auctioned up in 2011, it sold for $5.6 million. Looks like Monroe, with not one, but two appearances on this list, takes the cake for most expensive dress of all time.

Shop a similar look: Seven Year Itch-inspired dress, $113, etsy.com

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From: Town & Country