Princess Diana's iconic blue velvet gown which she wore to dance with John Travolta at White House goes on Sale

The Princess of Wales wowed the great and the good of Hollywood when she wore the Victor Edelstein blue velvet evening gown at the state dinner in 1985 Footage of her dancing to music from Travolta's hit film Saturday Night Fever went around the world, with the actor describing the experience as 'a fairytale'

In June 1997 - just two months before her death - Diana auctioned off the dress for £420,000 to raise funds for Aids charities

Princess Diana who has always and forever remained a fashionable icon, not for what it wore, but for how and why …

It's been twenty years Princess Diana have passed away but we are still obsessed with her style and are looking for her echoes in the existing monarchs.

Fans of Princess Diana have an opportunity to own one of the most famous dresses from her wardrobe.

The blue velvet gown by Victor Edelstein that she wore to a state dinner at the White House in 1985 will be up for auction next month in London; it is estimated to sell for £250,000 to £350,000, or about $324,121 to $453,770.

The gown must have been one of Diana's favorites; she wore it again several times, including for her last portrait by Lord Snowdon in 1997.

This isn't the first time the dress has gone up for grabs: Diana auctioned it off shortly before her death in 1997, and it was most recently for sale in 2013, when it sold for about $360,000.

Travolta once said that his dance with Diana came at the suggestion of hostess First Lady Nancy Reagan, who told him, "It is [Diana's] wish."

"I had to tap her own the shoulder and I had to say, 'Would you care to dance?'" he recalled. "She turned around and she dipped her head in that Lady Diana way and we were off for 15 minutes dancing. I'll never forget it. I was so honored."