A Chinese man accused of swallowing a diamond worth $13,600 at a gem show in Sri Lanka actually ingested a fake stone in an elaborate bluff to allow the real thief to escape, police said Tuesday. Detectives discovered the ruse after waiting until the man, 32, passed the fake stone that he had swallowed at the Facets Sri Lanka annual jewellery exhibition in Colombo last week. “The man with the real stone vanished while all the attention was on the man who was seen swallowing a stone that turned out to be fake,” police spokesman Ajith Rohana told AFP. “Investigations are now underway to track down the accomplice and recover the stolen diamond. We think both of them were involved in a racket.” Police said the man appeared to swallow a tiny 1.5-carat diamond — creating a distraction as the stall owner shouted to nearby police who arrested him. Photographs showed the captured man, dressed in a black shirt and jeans with his head bowed, being escorted from the exhibition centre by uniformed policemen. Sri Lanka does not mine diamonds but it has a large gem and jewellery industry and is famed for its blue sapphires.