Princess Diana, in black jeans, leaves the house of land mine victim Mirzeta Gabelic in Sarajevo, Bosnia, on August 10, 1997. EPA
Lady Diana Spencer, in slouchy boots and a dark coat, and Camilla Parker-Bowles at Ludlow Races on October 24, 1980 in England, UK. Getty Images
Lady Diana Spencer, in a shirt and knitted cardigan, leaves her flat at Coleherne Court in Earl's Court, London, on November 12, 1980. Getty Images
Lady Diana Spencer, in a rollneck jumper and pinstriped skirt, in London, England, on November 12, 1980. Getty Images
Lady Diana Spencer, in pearls and a cardigan, in London, England, on November 13, 1980. Getty Images
Prince Charles and Lady Diana Spencer, in Cojana, pose on the day their engagement was announced in the gardens of Buckingham Palace in London, England, on February 24, 1981. EPA
Diana, Princess of Wales, in Catherine Walker, at a banquet given at Claridge's hotel for King Khalid of Saudi Arabia, on June 11, 1981. Getty Images
Prince Charles and Princess Diana, wearing a gown by Elizabeth and David Emanuel, stand on the balcony of Buckingham Palace in London, England, following their wedding at St Paul's Cathedral on June 29, 1981. Reuters
Prince Charles and Diana, Princess of Wales, in Caroline Charles, at Caernarvon Castle during an official tour of Wales on October 27, 1981. Getty Images
Princess Diana of Wales, wearing Caroline Charles, in Carmarthen, Wales, on October 29, 1981. Getty Images
Prince Charles and Diana, Princess of Wales, wearing Bellville Sassoon, at 11 Downing Street, the official residence of the Chancellor of the Exchequer, on February 2, 1982. Getty Images
Prince Charles and Diana, Princess of Wales, in Catherine Walker, at Westminster Abbey, London, on February 28, 1982. Getty Images
Diana, Princess of Wales, wearing Belville Sassoon, at a Royal Gala performance at Barbican Arts Centre in London, on March 4, 1982. Getty Images
Diana, Princess of Wales, in Bellville Sassoon, at Aintree racecourse for the Grand National, on April 3, 1982. Getty Images
Prince Charles and Princess Diana, in Catherine Walker, take home their son, Prince William, from St Mary's Hospital in London, England, on June 22, 1982. AP
Australian Prime Minister Bob Hawke with his wife Hazel, and the Prince and Princess of Wales, wearing a blue dress with matching hat, in front of Government House in Canberra, Australia, on March 24, 1983. Getty Images
Princess Diana, wearing Catherine Walker, and Prince Charles watch an official event during their first royal Australian tour in Newcastle, Australia, on March 29, 1983. Getty Images
Roger Moore and his wife Luisa meet Diana, Princess of Wales, wearing Hachi, at a premiere at the Odeon Leicester Square in London, England, on June 6, 1983. Getty Images
Diana, Princess of Wales, in velvet, and Prince Charles in Scotland, UK, on September 5, 1983. Getty Images
Prince Charles and Diana, Princess of Wales, in a belted wool tunic, with their son, Prince William, on December 14, 1983. Getty Images
Diana, Princess of Wales, in velvet, at the British Embassy in Oslo, Norway, on February 12, 1984. Getty Images
Diana, Princess of Wales, wearing Jan van Velden, with Crown Prince Harald of Norway at a performance by the London City Ballet in Oslo, Norway, on February 13, 1984. Getty Images
Diana, Princess of Wales, in a white tux jacket, with Phil Collins of Genesis at the National Exhibition Centre in Birmingham, UK, on March 2, 1984. Getty Images
Prince Charles and Diana, Princess of Wales, in a drop-waisted dress, at Cirencester Polo Club after a match on July 2, 1984. Getty Images
Prince Charles and Diana, Princess of Wales, wearing Jasper, leave the Lindo Wing of St Mary's Hospital with their son, Prince Harry, in London, UK, on September 16, 1984. Getty Images
Diana, Princess of Wales, wearing Caroline Charles, during a visit to Bridgend, Wales, on January 29, 1985. Getty Images
Diana, Princess of Wales, wearing Caroline Charles with a hat by John Boyd, visits Nottingham, England, on March 7, 1985. Getty Images
Princess Anne, Princess Diana, in Emanuel, and the Queen Mother at the premiere of 'A Passage to India' in London, England, on March 18, 1985. Getty Images
Prince Charles and Diana, Princess of Wales, wearing Bruce Oldfield, in Rome, Italy, on April 27, 1985. Getty Images
Princess Diana, wearing Victor Edelstein, dances with John Travolta at the White House in Washington, DC, on November 9, 1985. Getty Images
Princess Diana, in an off-shoulder gown, and Prince Charles at the Ajuda palace in Lisbon, Portugal, on February 12, 1986. Reuters
Prince Charles and Princess Diana, in a dotted midi dress, are welcomed by Japan's Crown Prince Akihito and Crown Princess Michiko in Tokyo, Japan, on May 10, 1986. EPA
Princess Diana, in Catherine Walker, at the Cannes Film Festival in Cannes, France, on May 15, 1987. EPA
Sheikh Zayed with Prince Charles, Princess Diana, in Catherine Walker, and Zaki Nusseibeh in Abu Dhabi on March 14, 1989. Courtesy Zaki Nusseibeh / Akkasah Centre for Photography
Prince Charles and Diana, Princess of Wales, wearing Catherine Walker, attend a dinner at the parliament buildings in Budapest, Hungary, on May 7, 1990. Getty Images
Diana, Princess of Wales, in Catherine Walker, and Prince Charles sit in a carriage in Bugac, Hungary, on May 9, 1990. EPA
Diana, Princess of Wales, in Catherine Walker, outside the Taj Mahal in Agra, India, on February 11, 1992. Getty Images
The Queen Mother, Princess Diana, in a pink blazer and polka-dot dress, and Prince Harry at Clarence House in London, England, on August 4, 1992. EPA
Diana, Princess of Wales, in a velvet and lace dress, attends Paul McCartney's oratorio 'Liverpool' in Lille, France, on November 15, 1992. AFP
Princess Diana, in a blue blazer and white skirt, meets President Robert Mugabe at State House in Harare, Zimbabwe on July 10, 1993. Shutterstock
Princess Diana, in a navy jacket, at the British Formula One Grand Prix held on July 10, 1994 at Silverstone, England. Getty Images
Diana, Princess of Wales, wearing a Mansfield coat, Prince Charles, Prince Harry and Prince Edward attend the Christmas Day service at St Mary Magdalene Church in Sandringham, England, on December 25, 1994. Getty Images
Diana, Princess of Wales, in a blue skirt suit, and Prince Harry attend the Heads of State Victory in Europe Remembrance Service in London, England, on May 7, 1995. Getty Images
Diana, Princess of Wales, in Catherine Walker, attends a dinner hosted by 'Vanity Fair' magazine at the Serpentine Gallery in London, England, on June 27, 1995. Getty Images
Diana, Princess of Wales, in a sequin-embellished black dress, with Henry Kissinger and Colin Powell at the 41st annual United Cerebral Palsy Awards on December 11, 1995 in New York City, US. Getty Images
Princess Diana, in a lilac shift dress, visits the Victor Chang Cardiac Research Institute in Sydney, Australia, on November 1, 1996. Getty Images
Diana, Princess of Wales, in a white skirt suit, arrives at the Sacred Heart Hospice in Sydney, Australia, on November 2, 1996. Getty Images
Princess Diana, in a buttoned white dress, arrives at a Hindu temple in London, England, on June 6, 1997. EPA
Diana, Princess of Wales, in Jacques Azagury, arrives at the Tate Gallery in London, England, on July 1, 1997. EPA
Princess Diana, in black jeans, leaves the house of land mine victim Mirzeta Gabelic in Sarajevo, Bosnia, on August 10, 1997. EPA
Lady Diana Spencer, in slouchy boots and a dark coat, and Camilla Parker-Bowles at Ludlow Races on October 24, 1980 in England, UK. Getty Images
Lady Diana Spencer, in a shirt and knitted cardigan, leaves her flat at Coleherne Court in Earl's Court, London, on November 12, 1980. Getty Images
Lady Diana Spencer, in a rollneck jumper and pinstriped skirt, in London, England, on November 12, 1980. Getty Images
Lady Diana Spencer, in pearls and a cardigan, in London, England, on November 13, 1980. Getty Images
Prince Charles and Lady Diana Spencer, in Cojana, pose on the day their engagement was announced in the gardens of Buckingham Palace in London, England, on February 24, 1981. EPA
Diana, Princess of Wales, in Catherine Walker, at a banquet given at Claridge's hotel for King Khalid of Saudi Arabia, on June 11, 1981. Getty Images
Prince Charles and Princess Diana, wearing a gown by Elizabeth and David Emanuel, stand on the balcony of Buckingham Palace in London, England, following their wedding at St Paul's Cathedral on June 29, 1981. Reuters
Prince Charles and Diana, Princess of Wales, in Caroline Charles, at Caernarvon Castle during an official tour of Wales on October 27, 1981. Getty Images
Princess Diana of Wales, wearing Caroline Charles, in Carmarthen, Wales, on October 29, 1981. Getty Images
Prince Charles and Diana, Princess of Wales, wearing Bellville Sassoon, at 11 Downing Street, the official residence of the Chancellor of the Exchequer, on February 2, 1982. Getty Images
Prince Charles and Diana, Princess of Wales, in Catherine Walker, at Westminster Abbey, London, on February 28, 1982. Getty Images
Diana, Princess of Wales, wearing Belville Sassoon, at a Royal Gala performance at Barbican Arts Centre in London, on March 4, 1982. Getty Images
Diana, Princess of Wales, in Bellville Sassoon, at Aintree racecourse for the Grand National, on April 3, 1982. Getty Images
Prince Charles and Princess Diana, in Catherine Walker, take home their son, Prince William, from St Mary's Hospital in London, England, on June 22, 1982. AP
Australian Prime Minister Bob Hawke with his wife Hazel, and the Prince and Princess of Wales, wearing a blue dress with matching hat, in front of Government House in Canberra, Australia, on March 24, 1983. Getty Images
Princess Diana, wearing Catherine Walker, and Prince Charles watch an official event during their first royal Australian tour in Newcastle, Australia, on March 29, 1983. Getty Images
Roger Moore and his wife Luisa meet Diana, Princess of Wales, wearing Hachi, at a premiere at the Odeon Leicester Square in London, England, on June 6, 1983. Getty Images
Diana, Princess of Wales, in velvet, and Prince Charles in Scotland, UK, on September 5, 1983. Getty Images
Prince Charles and Diana, Princess of Wales, in a belted wool tunic, with their son, Prince William, on December 14, 1983. Getty Images
Diana, Princess of Wales, in velvet, at the British Embassy in Oslo, Norway, on February 12, 1984. Getty Images
Diana, Princess of Wales, wearing Jan van Velden, with Crown Prince Harald of Norway at a performance by the London City Ballet in Oslo, Norway, on February 13, 1984. Getty Images
Diana, Princess of Wales, in a white tux jacket, with Phil Collins of Genesis at the National Exhibition Centre in Birmingham, UK, on March 2, 1984. Getty Images
Prince Charles and Diana, Princess of Wales, in a drop-waisted dress, at Cirencester Polo Club after a match on July 2, 1984. Getty Images
Prince Charles and Diana, Princess of Wales, wearing Jasper, leave the Lindo Wing of St Mary's Hospital with their son, Prince Harry, in London, UK, on September 16, 1984. Getty Images
Diana, Princess of Wales, wearing Caroline Charles, during a visit to Bridgend, Wales, on January 29, 1985. Getty Images
Diana, Princess of Wales, wearing Caroline Charles with a hat by John Boyd, visits Nottingham, England, on March 7, 1985. Getty Images
Princess Anne, Princess Diana, in Emanuel, and the Queen Mother at the premiere of 'A Passage to India' in London, England, on March 18, 1985. Getty Images
Prince Charles and Diana, Princess of Wales, wearing Bruce Oldfield, in Rome, Italy, on April 27, 1985. Getty Images
Princess Diana, wearing Victor Edelstein, dances with John Travolta at the White House in Washington, DC, on November 9, 1985. Getty Images
Princess Diana, in an off-shoulder gown, and Prince Charles at the Ajuda palace in Lisbon, Portugal, on February 12, 1986. Reuters
Prince Charles and Princess Diana, in a dotted midi dress, are welcomed by Japan's Crown Prince Akihito and Crown Princess Michiko in Tokyo, Japan, on May 10, 1986. EPA
Princess Diana, in Catherine Walker, at the Cannes Film Festival in Cannes, France, on May 15, 1987. EPA
Sheikh Zayed with Prince Charles, Princess Diana, in Catherine Walker, and Zaki Nusseibeh in Abu Dhabi on March 14, 1989. Courtesy Zaki Nusseibeh / Akkasah Centre for Photography
Prince Charles and Diana, Princess of Wales, wearing Catherine Walker, attend a dinner at the parliament buildings in Budapest, Hungary, on May 7, 1990. Getty Images
Diana, Princess of Wales, in Catherine Walker, and Prince Charles sit in a carriage in Bugac, Hungary, on May 9, 1990. EPA
Diana, Princess of Wales, in Catherine Walker, outside the Taj Mahal in Agra, India, on February 11, 1992. Getty Images
The Queen Mother, Princess Diana, in a pink blazer and polka-dot dress, and Prince Harry at Clarence House in London, England, on August 4, 1992. EPA
Diana, Princess of Wales, in a velvet and lace dress, attends Paul McCartney's oratorio 'Liverpool' in Lille, France, on November 15, 1992. AFP
Princess Diana, in a blue blazer and white skirt, meets President Robert Mugabe at State House in Harare, Zimbabwe on July 10, 1993. Shutterstock
Princess Diana, in a navy jacket, at the British Formula One Grand Prix held on July 10, 1994 at Silverstone, England. Getty Images
Diana, Princess of Wales, wearing a Mansfield coat, Prince Charles, Prince Harry and Prince Edward attend the Christmas Day service at St Mary Magdalene Church in Sandringham, England, on December 25, 1994. Getty Images
Diana, Princess of Wales, in a blue skirt suit, and Prince Harry attend the Heads of State Victory in Europe Remembrance Service in London, England, on May 7, 1995. Getty Images
Diana, Princess of Wales, in Catherine Walker, attends a dinner hosted by 'Vanity Fair' magazine at the Serpentine Gallery in London, England, on June 27, 1995. Getty Images
Diana, Princess of Wales, in a sequin-embellished black dress, with Henry Kissinger and Colin Powell at the 41st annual United Cerebral Palsy Awards on December 11, 1995 in New York City, US. Getty Images
Princess Diana, in a lilac shift dress, visits the Victor Chang Cardiac Research Institute in Sydney, Australia, on November 1, 1996. Getty Images
Diana, Princess of Wales, in a white skirt suit, arrives at the Sacred Heart Hospice in Sydney, Australia, on November 2, 1996. Getty Images
Princess Diana, in a buttoned white dress, arrives at a Hindu temple in London, England, on June 6, 1997. EPA
Diana, Princess of Wales, in Jacques Azagury, arrives at the Tate Gallery in London, England, on July 1, 1997. EPA
Princess Diana, in black jeans, leaves the house of land mine victim Mirzeta Gabelic in Sarajevo, Bosnia, on August 10, 1997. EPA
