Spanish authorities say a euro12,000 ($16,500) diamond was found in a thief's stomach after he was taken to a hospital for an X-ray.
A British tourist reported that a purse with the diamond in it was stolen by two well-dressed men who entered a restaurant in the beach resort of Marbella.
Police said in a statement Wednesday that officers later stopped a car with four men with criminal records, and found the purse inside the car.
An officer saw one of the men put his hand to his mouth, like he was hiding something. The man was taken to a medical center, where the X-ray revealed the diamond in his stomach. The detained men were not identified.