A police official said earlier that the jewels were worth more than $ 1 million . The heist is the third major gem or jewelry robbery in the Cannes area Sunday . CNN 's Stephanie Halasz , Vladimir Duthiers and Lauren Russell contributed to this report . Sunday 's heist happened at a jewelry exhibition at the Carlton Hotel .
A police official said earlier that the jewels were worth more than $ 1 million . The heist is the third major gem or jewelry robbery in the Cannes area Sunday . Sunday 's heist happened at a jewelry exhibition at the Carlton Hotel .