Princess Diana, the Princess of Wales, arrives at a charity fashion show wearing a silver dress designed by Bruce Oldfield, in London, in 1985. The charity affair was expected to raise L70,000 ($82,600) for the Dr. Barnado Homes, that take care of orphan children. (AP Photo)

Princess Diana, the Princess of Wales, during a visit to a knitwear factory in Leicester, England, in March 1984. The Princess is expecting her second child. (AP Photo/John Redman)

Jul 29, 1983; London, UK; HRH PRINCE CHARLES and LADY DIANA SPENCER the day after her wedding day, PRINCESS DIANA at St. Paul's Catherdral. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

Princess Diana, the Princess of Wales, during her visit to the Elmhurst Ballet School, in Camberley, Surrey, on July 6, 1983. This was her first public engagement following her recent tours in Australia, New Zealand and Canada. (AP Photo)

Princess Diana, the Princess of Wales, pictured in London, England on May 24, 1983. (AP Photo)

Princess Diana wearing colorful garlands presented by resident Nepalese girls smiles at well-wishers at the British Naval base in Hong Kong, China on Wednesday, Nov. 8, 1989. Diana and Prince Charles arrived in the British colony on Tuesday for a three-day visit. (AP Photo/Liu Heung Shing)

Princess of Wales Diana poses, 27 January 1988, during her visit to the Footscray Park in suburb of Melbourne.

Princess of Wales Diana waves to the crowd, 27 January 1988, during her visit to the Footscray Park in suburb of Melbourne.

The Princess of Wales is pictured during an evening reception given by the West German President Richard von Weizsacker in honour of the British Royal guests in the Godesberg Redoute in Bonn, Germany on Monday, Nov. 2, 1987. Prince Charles and Princes Diana are touring Germany presently in an official state visit. (AP Photo/Herman Knippertz)

Princess Diana is shown on the slopes at Kloster, Switzerland, Feb. 1986. (AP Photo)

Diana, the Princes of Wales, casts a glance at her husband Prince Charles as he speaks at a press conference at the National Gallery of Art, in Washington, Nov. 10, 1985. (AP Photo/ Bob Daugherty)

Princess of Wales Diana poses, 07 November 1985, at the opening of the new visitor's information center of the national botanical gardens in Canberra.

The case may be closed on Princess Diana's death, but the conspiracy theories will continue. (AP Photo/Jim Bourdier)

Princess Diana of Wales wears a strapless black formal evening dress while attending the opening of the Wolfson Galleries of Classical Sculpture and Inscriptions at the British Museum in London on Wednesday, April 3, 1985. (AP Photo/Peter Kemp)

The Princess of Wales picks at her fingers while listening to speeches, at a horse racing presentation ceremony in a London hotel on May 24, 1983. The Princess and her husband, Prince Charles, were attending the National Hunt Awards, for outstanding feats of horsemanship in the 1982-1983 National Hunt Season. (AP Photo/Pool/BIPNA, John Redman)

The Princess of Wales listening to speeches at a horse racing presentation ceremony in a London hotel on May 24, 1983. The Princess and her husband, Prince Charles, were attending the National Hunt Awards, for outstanding feats of horsemanship in the 1982-1983 National Hunt Season. (AP Photo/Pool/BIPNA, John Redman)