The chief prosecutor of the war crimes tribunal for Sierra Leone says Naomi Campbell will testify next month at Charles Taylor’s trial.

Prosecutors want the supermodel to say whether Taylor gave her a rough, or uncut, diamond as a gift in 1997.

Her confession could help directly link Taylor to the possession of uncut diamonds used to fuel a campaign of terror in Sierra Leone between 1997 and 2001.

Naomi Punches News Camera Over “Blood Diamond” Question

The court issued the order forcing Campbell to testify after she avoided prosecutors for a year and made it known she had no wish to be part of the case.

Prosecutor Brenda Hollis said Thursday that Campbell will testify on Aug. 5 instead of July 29 as previously scheduled.

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