The auction is being held to raise money for CLIC Sargent which will provide clinical, financial and emotional backing to children with cancer.
"I have supported CLIC Sargent for more than 10 years and it is a charity I hold very close to my heart. My brother died aged 10 from cancer and the pain caused by it to people around a child suffering is devastating. I am delighted to donate a unique print for the auction tonight in support of this wonderful cause."
The artistic picture of the supermodel was taken when she was 22-years-old and was once displayed at a Testino exhibition at the National Portrait Gallery in 2002!
After being in a the gallery, the photograph traveled the world to Milan, Edinburgh, Tokyo, Amsterdam, Mexico and Lima! How fun!
The auction will be held at the Masterpiece Midsummer Party on July 3 and there's no doubt Miz Moss' photograph will get some hefty moola!
[Image courtesy of Mario Testino]