Jewels worth 777,000 euros ($US1 million) have been stolen from a hotel room in Cannes.
The jewels were to be loaned to celebrities in Cannes to wear on the red carpet at the annual film festival, which opened on Wednesday.
They were taken from the hotel room of an employee of Swiss jewellers Chopard early on Friday morning.
A safe containing the jewels was ripped from a wall of the room at the Novotel hotel. The entire safe was taken from the room.
Chopard is one of the official sponsors of the festival.
A festival official said the Palme d'Or trophy was safe. It features 118 grams of yellow gold, set in a base of rock crystal.
In a statement, Chopard said the value of the jewels had been exaggerated and the items were not for actresses to use. The company declined to give further details.