Princess Nouf is the wife of Saudi Ambassador to the US Prince Turki Al-Faisal, who served as Ambassador to the UK and Ireland before his posting in Washington.
The prize was established last year for students between the ages of 12 and 18 in order to encourage scientific and cultural awareness.
The King Fahd Academy has around 1,000 students, amongst them the children of Arab diplomats serving in London as well as other Arab and Muslim children living in London. Its curriculum includes the arts and sciences as well as Islamic studies and the Arabic language.