We all remember the majesty of Princess Diana's fantasy wedding gown, with the incredible train that ran 25 feet long. Now, ET has the secrets of the gown of the century from the woman who designed it along with her husband David, Elizabeth Emanuel!
"She loved it, absolutely loved it," Elizabeth tells ET about Diana's reaction to her dream gown.
Diana debuted her incredible gown at St. Paul's Cathedral in London when she married Prince Charles in 1981, in front of an international audience of millions.
"We wanted to make that moment as dramatic as possible," says Elizabeth of Diana's entrance.
How did it all begin? Elizabeth's company, Art of Being, is located in London's Little Venice just down the way from the Vogue offices, and she says the connection with Diana first began when Vogue requested a blouse for a secret photo shoot. Diana was the subject of the shoot, and the design ended up being a favorite of the princess-to-be.
Next thing they knew, Diana had requested Elizabeth and David's services to create a gown -- with only three months to go before the royal wedding.
"The whole thing came as a bit of a surprise for us because we were a tiny little studio," says Elizabeth. "It was a huge job. ... We were kind of working around the clock."
As for the design, she explains, "At the time it was all romance, and froth and lace and big skirts, and it was over the top and it was perfect. She loved that."
Elizabeth adds with a smile, "We were really guarding this secret with our lives -- we didn't want anybody to see it."
On the day of the wedding, while Elizabeth and her husband were rushing around trying to get everything right, she recalls that Diana "didn't seem to get nervous. … This was the wedding of all weddings, and she was very, very calm about it. Not nervous at all. We were far more nervous."
Watch ET for more Princess Diana details!