Diamond heiress Zeta Graff filed a suit against hotel chain heiress Paris Hilton back in July 2005, and the $10 million slander trial was supposed to start this month. Hilton’s claim that she is “emotionally distraught and traumatized” after receiving a court ruling that will send her to jail isn’t going over well with Graff. The slander trial has been postponed to August, and Graff thinks it’s too long to wait in light of the fact that Hilton has been seen participating in the hot LA club scene - even as recently as this past weekend. After hearing from psychiatrist Dr. Charles Sophy, who said that Paris was too upset to work on a defense against the slander proceedings, managed to put off the trial (originally scheduled to begin May 21) until August 22, after Hilton is released from jail.  The trial stems from a gossipy news item that surfaced in the Post years ago.