Supermodel Naomi Campbell, testifying reluctantly at a war crimes trial, said on Thursday she was given "dirty looking pebbles" but did not know if they were blood diamonds from former Liberian ruler Charles Taylor.

Complaining that having to appear at the court in The Hague was an "inconvenience," Campbell said two unidentified men came to her bedroom after she attended a charity dinner with Taylor and then-South African President Nelson Mandela in 1997.

"I was sleeping and had a knock at the door that woke me up. Two men were there and they gave me a pouch and said: 'A gift for you'," she told the U.N. Special Court for Sierra Leone.