The Most Expensive (And Unique) Celebrity Wedding Dresses

It's no surprise that a bride wants to look her best on her big day.

While she may spend extra time and money on her hair and makeup, it all comes down to one thing: The Dress.

This is where many celebs and members of the royal family said "yes" to some pretty expensive dresses.

Here are 10+ of them.

Julianne Hough - $20,000

While it's incredibly sad that Hough recently filed for divorce from her husband, Brooks Laich, she'll always have her wedding dress to remember him by.

She spent a hefty amount on the gorgeous custom-made Marchesa gown.

Kim Kardashian - $25,000

This may seem like a small amount for the lavish reality star to pay, but she actually had three wedding dresses for her 2011 wedding to Kriss Humphries.

This means that she spent a total of $75,000 on the Vera Wang gowns.

Jessica Simpson - $30,000

Instead of designing her own wedding dress, the singer and fashion designer opted for a Carolina Herrera dress for her wedding to Eric Johnson.

This was just a small chunk of their $1.4 million wedding budget.

Keira Knightly - $50,000

While she wore a Chanel dress that was already hanging in her closet for her first wedding ceremony to James Righton, she purchased a custom Valentino gown for her second secret wedding to him.

She's keeping it for her daughters one day.

Katie Holmes - $50,000

A lot went into the actress's dress to rack up the price tag.

It took Giorgio Armani's atelier 350 hours to cover Kate's dress with Swarovski crystals and then another 70 hours to transform 400 feet of crinoline and tulle into a veil.

Jennifer Aniston - $50,000

The Friends star has famously walked down the aisle twice, but her first marriage to Brad Pitt is the one we remember best.

She wed him in a glass-beaded silk and satin Lawrence Steele gown.

Grace Kelly - $60,000

You can't have a wedding dress list without the ultimate style icon, Grace Kelly.

She made history when she tied the knot to Monaco's Prince Rainier III in a dress designed by Helen Rose. The dress was modest yet timeless with its high-neck, full skirt, and long-sleeves.

Nicky Hilton - $77,000

The hotel heiress spared no expense for her 2015 Kensington Palace wedding to James Rothschild.

She looked absolutely stunning in the long-sleeved Valentino gown, which cost quite the pretty penny. Paris must have been jealous!

Madonna - $81,250

In case you forgot, the legendary pop singer was once married to Sean Penn. She walked down the aisle to him in a tulle dress that was so quintessential '80s.

While the exact number she spent isn't known, the dress did auction off for $81,250 in 2014.

Victoria Beckham - $100,000

The British star wore the stunning silk gown by Vera Wang for her 1999 wedding. It featured a 20-foot train and a sculpted neckline.

Since her wedding was held in a castle, it was only fitting that she also wore an 18K-gold tiara.

Jessica Biel - $100,000

Jessica was quite the blushing bride in her pink-colored Giambattista Valli Haute Couture.

"I have never been crazy about all-white wedding dresses, for me at least," she told Elle about the non-traditional color choice.

Catherine Zeta-Jones- $140,000

Given the fact that the couple are still going strong, we'd say that this dress was worth every penny.

She wore the Christian Lacroix wedding dress exactly 17 years ago on November 18.

Princess Diana - $115,000

If you've been watching The Crown lately, you've probably seen the infamous wedding gown again.

Diana's extravagant gown for her royal wedding to Prince Charles was designed by the former designer couple, David and Elizabeth Emanuel.

Elizabeth Taylor- $187,931

She may have been married eight times in her life, but that didn't make her dresses any less special.

She wore this expensive one to her 1950 wedding to Conrad "Nicky" Hilton (yes, Paris and Nicky Hilton's great uncle), which was designed by Helen Rose.

Mariah Carey - $250,000

While Mariah and her ex-fiancé, James Packer, never made it down the aisle, she still spent a good chunk of change on the dress.

Her dress was Valentino and would have looked gorgeous with that $10 million engagement ring.

Amal Clooney - $380,000

When you get the chance to marry one of the most famous bachelors, you go all-out.

Amal looked gorgeous in her off-the-shoulder lace Oscar de la Renta dress, which was actually the last wedding dress the late designer ever made.

Kate Middleton - $434,000

With millions of people watching you get married, it makes sense that you want to look your best.

For Kate Middleton, this meant wearing a $434,000 wedding gown that was designed by Sarah Burton for Alexander McQueen.

Salma Hayek - $434,000

Since the actress looked like royalty, it makes perfect sense that her wedding dress cost the same as a royal's dress.

She wore the Balenciaga gown, designed by Nicolas Ghesquière, for her wedding to CEO of the PPR group, Francois-Henri Pinault.

Kim Kardashian - $500,000

While her wedding to Kayne West was much more low-key compared to her one with Kris Humpries, she didn't skimp out on the dress.

She had on a $500,000 Riccardo Tisci for Givenchy gown, which she paired with $40,000 Balmain heels.