Police said someone stole $400,000 worth of diamonds from a dealer's vehicle as he was dining at a restaurant near International Drive.
Police said the victim told them he was getting food at Sweet Tomatoes on Kirkman Road when the thieves struck.
The victim said his doors were locked and his alarm was set, but the thieves busted out a window and opened the door, grabbing a bag inside that contained the diamonds.
The thieves, however, left behind other valuables like a GPS, which has police wondering whether the victim was targeted.
"This could have just been a crime of opportunity, where a would-be vehicle burglary, say a bag in the car, and (a thief) decided he was going to take that bag and may have discovered what was inside at that point," said Sgt. Jim Young.
But inside the bag were three pouches containing a total of 57
one-carat diamonds, police said.
Police said the victim is from New Jersey and was in a rental car at the time of the theft.
Police said this incident proves it's not a good idea to leave any valuables in vehicles.