Are we sure this isn't a viral marketing stunt for a remake of To Catch a Thief? About a week after some $1.4 million worth of Chopard jewels were stolen from a hotel during the Cannes Film Festival, a diamond necklace valued at $2.6 million vanished from a swanky party on the French Riviera that hosted the likes of Sharon Stone, Paris Hilton, Chris Tucker, and Alessandra Ambrosio

According to Reuters, the necklace was one of the pieces from De Grisogono's 20th anniversary collection that 20 models wore at the event, which took place at a hotel in Antibes, located outside of Cannes. De Grisogono founder Fawaz Gruosi told Reuters that security was tight. Specifically: "80 bodyguards, local police, hotel security, and De Grisogono staff had been on duty." 

There are still questions as to whether this was an actual theft or whether the necklace was simply lost. "We don't know exactly what happened," Gruosi told Reuters, "it was one of the most beautiful items we had." If this was an inside job orchestrated by models, well, then this could get really interesting. 

Cannes—where these types of events aren't that unusual—is becoming synonymous with crime this  year. Following the Chopard heist, someone stole the luggage belonging to a Chinese film executive from a rented apartment. Muggings and other burglaries have also been reported.