Naomi Campbell flirted with Liberia's former President Charles Taylor when they met at a dinner in Nelson Mandela's presidential mansion in 1997, and the following morning saw her boast that he had given her a huge diamond, actress Mia Farrow and Carole White, Campbell's former agent, told a war crimes tribunal in The Hague Monday.

The British supermodel has repeatedly denied being in possession of what is believed to be "blood diamond," saying she did not know the nature or value of what she had received, but the two's testimonies seem to contradicted her claim.

According to several media sources, prosecutors hope the Farrow – an actress-turned-human rights activist – and White's testimonies will help tie Taylor to the illicit diamond trade that fueled Sierra Leone's civil war.

Nevertheless, even if judges accept the women's testimony, it is unlikely to change the course of the trial, since both have said that they did not know for certain it was Taylor that gave Campbell the diamonds.

The former Liberian dictator is facing 11 war-crimes charges linked to Sierra Leone's vicious civil war, which ended in 2002 with an estimated 100,000 dead. Taylor has denied all allegations against him.

He has also denied any involvement in the diamond trade as, dismissing it as "complete, complete nonsense."

In her testimony, Farrow recounted what she called "the unforgettable memory" of an ecstatic Campbell coming down for breakfast the morning after Mandela's dinner party: "She said 'Oh my God, last night I was awakened by men knocking at the door and it was men sent by Charles Taylor and he sent me a huge diamond'," Farrow said.

Campbell, initially refused to appear before the war-crimes court, and prosecutors eventually had to subpoena her. In her testimony, which was widely broadcast across media channels, Campbell said she "was given several small 'dirty-looking' stones by men she didn't know after the function in Pretoria."

Campbell further said that she did not they stones were, in fact, diamonds, nor who had sent them, adding that Farrow was the one who suggested the gift was from Taylor.

Publicity Stunt?

Taylor's defense lawyers accused the prosecution of calling the Campbell and Farrow to the witness stand as a publicity stunt, meant to raise the media profile of the trial – which has been going on for two years – by using the two's reputation.

Prior stages of the trial saw Taylor testify over seven months, portraying himself as an African liberator and statesman who sought to bring stability and peace to his turbulent corner of the continent.

Taylor's chief counsel, Courtenay Griffiths, argued that Farrow was "unlikely to accurately remember what happened at a breakfast 13 years ago." Citing the example that Campbell had received three uncut diamonds – not one single diamond as she insisted she heard Campbell talk about.

The defense also suggested Farrow's credibility was tainted by her activism, particularly her campaigns for the victims of Africa's wars.

On the stand, Farrow conceded that she had actually seen the diamond or diamonds in question herself, and that Campbell might not have used the word "huge." But she insisted remembering Campbell only mentioned a single diamond.

South African businessman Jeremy Ractliffe, the former head of the Nelson Mandela Children's Fund, confirmed last week that Campbell had given him three stones in 1997, to donate to charity. He said he hadn't done anything with them because he "feared that a blood diamond scandal might attach to Mandela or Campbell as a result."

The court asked Farrow if it was possible she might have been influenced by seeing the 2006 movie "Blood Diamond," whose plot centers on a single large diamond, but Farrow dismissed any suggestion that she was confusing reality with Hollywood.

Campbell's former agent Carole White, told the court that Taylor and her then-client enjoyed each other's company at the dinner table. "I think she was flirting with him and he was flirting back," she said.

At one point during the meal, White said, Campbell leaned back to speak to her. She "was very excited and she told me he was going to give her some diamonds," White told the court.

Later on, White continued, Campbell seemed disappointed by the uncut diamonds. The model, she added, noted the stones "were not very impressive and not enormously big."

The defense challenged White's testimony: "You have a very powerful motive for lying," Griffiths said, noting that White is suing Campbell for millions of dollars over an alleged breach of contract.

In all The Hague has heard some 91 witnesses testify against Taylor in the course of the trial.