Mandatory Credit: Photo by REX/Shutterstock (2662657b) Princess Diana dances with John Travolta White House dinner, Washington DC, America - 09 Nov 1985 Previously unseen photos of Princess Diana dancing with a host of stars at a White House dinner in 1985 have emerged. At the event the late Princess famously showed off her dance moves with Saturday Night Fever king John Travolta. However, now new images reveal that the then 24-year-old royal also took to the dance floor with a number of other famous faces. This includes Clint Eastwood, Tom Selleck and United States President Ronald Reagan. For the dinner Diana wore a now famous Victor Edelstein gown, which sold earlier this year for £240,000. With the Amber Lounge event about to take place this Friday at the Monaco Grand Prix, it won’t be long before we unveil our exclusive Revi Jorrou-designed couture dress. With a price tag estimated at £10,000, we decided to take a look at some other iconic and expensive dresses.

Grace Kelly - $4,000

No Merchandising. Editorial Use Only. No Book Cover Usage Mandatory Credit: Photo by Everett/REX/Shutterstock (409658t) GRACE KELLY, The Country Girl, accepting Oscar from WILLIAM HOLDEN, Oscars - 1955 VARIOUS Although it may not seem expensive compared to other dresses in our rundown, back in 1955 this would have been a rather large price tag. In today’s money, the dress would be valued at over £35,000, which is still small compared to other dresses on the list. However, this gown was worn the night Grace cemented her status as a Hollywood icon, taking home the Best Actress Academy Award for The Country Girl.

Princess Diana - £240k

Mandatory Credit: Photo by REX/Shutterstock (2662657b) Princess Diana dances with John Travolta White House dinner, Washington DC, America - 09 Nov 1985 Previously unseen photos of Princess Diana dancing with a host of stars at a White House dinner in 1985 have emerged. At the event the late Princess famously showed off her dance moves with Saturday Night Fever king John Travolta. However, now new images reveal that the then 24-year-old royal also took to the dance floor with a number of other famous faces. This includes Clint Eastwood, Tom Selleck and United States President Ronald Reagan. For the dinner Diana wore a now famous Victor Edelstein gown, which sold earlier this year for £240,000. A style icon renowned for her little black dresses, the People’s Princess wowed not only the room, but the whole world when she danced with Hollywood star John Travolta at the White House in 1985. The moment was so memorable it earned this Victor Edelstein designed gown the nickname ‘The Travolta Dress’. In 1997, Diana auctioned the dress off for charity, where it sold for £100,000, and then in 2011 it was auctioned off again, where it fetched an even more eye-watering £240,000.

Kate Middleton - £250k

Mandatory Credit: Photo by Jeremy Selwyn/Evening Standa/REX/Shutterstock (1706042a) Royal Wedding Of Prince William Of Wales To Catherine Middleton (kate Middleton) On 29th April 2011 Evening Standard Npa Pool Picture Of Prince William And His New Wife The Duchess Of Cambridge As They Leave Westminster Following Their Marriage Ceremony. Picture By Jeremy Selwyn Royal Wedding Of Prince William Of Wales To Catherine Middleton (kate Middleton) On 29th April 2011 Evening Standard Npa Pool Picture Of Prince William And His New Wife The Duchess Of Cambridge As They Leave Westminster Following Their Marriage Cerem The world waited with baited breath as Kate Middleton stepped out at Westminster Abbey, unveiling her wedding dress to the world. Custom made by Sarah Burton, the head designer at Alexander McQueen, and with a price tag of £250,000, it has since become one of the most iconic wedding dresses in history.

Audrey Hepburn - $900k

No Merchandising. Editorial Use Only. No Book Cover Usage Mandatory Credit: Photo by Everett/REX/Shutterstock (411879co) 'BREAKFAST AT TIFFANY'S' - Audrey Hepburn - 1961 VARIOUS It’s one of the most iconic little black dresses of all time, worn by one of the most iconic film stars of all time. Debuting in the classic Breakfast at Tiffany’s, Audrey Hepburn wowed us all, and continues to do so more than 50 years later, in this Givenchy dress. Standing the true test of time, it was auctioned off in 2006, fetching a huge $900,000.

Marilyn Monroe - $4.6 million

Mandatory credit: TM & copyright 20th Century Fox. No Merchandising. Editorial Use Only. No Book Cover Usage. No Book or TV usage without prior permission from Rex PIN-TASTIC LEG MOMENTS -- EMBARGOED UNTIL 00.01HOURS MONDAY 18TH MAY 2015 Mandatory Credit: Photo by 20thC.Fox/Everett/REX/Shutterstock (450087b) MARILYN MONROE, THE SEVEN YEAR ITCH - 1955 VARIOUS MARILYN MONROE Possibly the most iconic dress of all time, worn on one of the most photographed stars in history and one of our all-time favourites, Marilyn Monroe. This dress has been the topic of conversation for more than 60 years, and is the first image that comes to mind when you think of Miss Monroe. Auctioned off in 2011 by Hollywood costume designer Debbie Reynolds, this simple white dress from The Seven Year Itch fetched a huge $4.6 million; cementing its status as an icon in its own right. Tomorrow, our own specially-designed dress will be going under the hammer to be auctioned off. So keep a look out to see how much it makes for charity, and where it ranks in the world of expensive dresses.