Mario Testino will auction a signed photo of Princess Diana to raise money for victims of the recent earthquake in his homeland of Peru.

His photo, which shows a smiling Diana wearing a black dress, first appeared in Vanity Fair magazine in 1997. The image was used on invitations to the recent Wembley Stadium concert organized by Prince Harry and Prince William to honor their mother's memory.

Diana died in a Paris car crash on Aug. 31, 1997. A memorial service was to be held in London today to mark the 10th anniversary of her death.

"I have decided to auction an image of Diana to help the people in Peru because, for me, Diana went out of her way to help people," the fashion photographer said Wednesday.

The auction will be held Nov. 20 in London by Phillips de Pury & Co. Proceeds will go to the Save the Children charity.

"So many buildings, schools and homes have collapsed in Peru since the earthquake a fortnight ago," Testino said. "Full recovery for the tens of thousands of families and their children affected will take a long time."

More than 500 people in several Peruvian cities were killed in the earthquake.