In the spirit of obsessing over things we can't afford, we combed through every celebrity wedding for a ranking of the 50 most expensive gowns of all time. See them all, ahead, including the simple, the gorgeous, and the ridiculous.
Although one of the most influential wedding dresses of all time, Jacqueline Kennedy's elaborate gown cost only $500. The original dress was destroyed 10 days prior to the ceremony, forcing designer Ann Lowe to remake the entire ensemble.
The $11,000 price tag of Heather Mills's wedding gown was revealed when designers Caroline Davis and Annie Brown accused the model of not giving them their promised publicity.
Nicole Kidman's Balenciaga gown is worth an estimated $20,000. The actress later donated the dress for an Australian art exhibit, saying, "I'll support anything that supports love."
Richie walked down the aisle in a $20,000, long-sleeve Marchesa gown.
The First Daughter settled on a $20,000, strapless Vera Wang gown for her big day.
While filming Roman Holiday, Hepburn had a wedding dress made by the Fontana sisters for her upcoming marriage to James Hanson. The actress and Hanson split before the wedding, and Hepburn ended up donating the dress to a local Italian girl. In 2009, the dress was auctioned off for $23,000.
For the singer's epic 1993 wedding to Tommy Mottola, Carey wore a $25,000 Vera Wang gown.
Elizabeth Taylor wore a $25,000 pale-yellow gown to her eighth and final marriage to Larry Fortensky.
The wedding gown Hepburn wore to her 1928 wedding to Ludlow Ogden Smith was auctioned off for $27,000 in 2004.
The singer wed Jordan Bratman in a $30,000 Christian Lacroix gown.
One of the most talked about dresses of all time, Princess Diana wore an elaborate silk taffeta gown adorned with lace, hand embroidery, sequins, and 10,000 pearls. While the dress was estimated to be worth $12,000 in 1981, the value is $34,000 today.
Houston's $40,000 high-neck, custom Marc Bouwer dress was auctioned off at Heritage Auctions in 2016.
The 3.5 million wedding of Liza Minnelli and David Gest called for a $45,000 Bob Mackie gown.
South Korean actress Lee Min-jung sported a $45,000 Marchesa lace gown for her wedding.
Trump wore a $50,000 Vera Wang gown inspired by Grace Kelly's iconic dress.
In Knightley's first wedding reception, the actress opted for a Chanel dress that was already hanging in her closet (pictured, here). It was later discovered that Knightly had a secret, second ceremony in which she wore a custom Valentino gown with an estimated worth of $50,000.
It took 350 hours to cover Holmes's Giorgio Armani dress with Swarovski crystals, which has an estimated worth of $50,000.
Taylor sported a $50,000 gown for her first marriage in 1950, which was designed by MGM costume designer Helen Rose. In 2013, the dress was auctioned off for $188,175.
Spelling wed Charlie Shanian in a gorgeous Badgley Mischka dress worth $50,000.
Aniston wore a $50,000 Lawrence Steele gown to her 2000 wedding to Brad Pit.
Middleton married James Matthews in a $52,000 Giles Deacon gown.
The Real Housewives of Atlanta personality wore three dresses during her wedding, the most expensive of which was a $58,000, 32-pound gown by Baracci Beverly Hills.
To this day, Kelly's dress remains a major inspiration for soon-to-be brides. The gown, designed by Helen Rose, cost an estimated $60,000. Summed up by Oscar de la Renta: "On her wedding day, Grace Kelly gave new meaning to the word icon."
The vibrant, uniquely colored Gina Fratini dress Taylor wore to her second wedding to Richard Burton in 1975 was auctioned off for $62,500.
Nicky Hilton graced the aisle in a $77,000 Valentino gown.
Though there's a bit of speculation surrounding the true worth of Madonna's Stella McCartney wedding gown for her marriage to Guy Ritchie, it's estimated to be worth $80,000.
The wedding dress that Madonna wore to her 1985 wedding to Sean Penn was auctioned off for $81,250 in 2014.
Trump's Christian Dior wedding gown is worth $100,000, featuring crystal beadwork that took 500 hours to complete.
Biel opted for the prettiest, pale-pink Giambattista Valli Haute Couture gown worth $100,000, which she wore down the aisle as Justin Timberlake serenaded her.
Coleen Rooney wed soccer player Wayne Rooney in a $100,400 Marchesa dress.
Catherine Zeta-Jones said "I do" to long-time husband Michael Douglas wearing a $140,000 Christian Lacroix gown.
Daughter of Formula One billionaire Bernie Ecclestone, Petra sported a $140,000, Vera Wang gown at her elaborate, $20-million wedding.
The Crown Princess of Greece wore a custom Valentino, pearl-encrusted gown. The dress took a team of 25 people to complete and is worth an estimated $225,000.
Though Carey and James Packer never made it down the aisle, it's rumored the singer burnt her $250,000 Valentino gown in a music video.
For the Royal Wedding we truly can't get over, Middleton opted for a $400,000, Alexander McQueen by Sarah Burton dress.
Australian singer and crystal heiress Victoria Swarovski takes the cake for the most expensive wedding dress of all time. The gown was embellished with 500,000 crystals, costing an estimated $1 million. Excuse us while we go pick up our jaws.