Sri Lankan 'diamond swallow theft was a bluff' Police said the man had been constantly monitored by armed guards to ensure the stone was not lost. Suresh de Silva, director of the Belgrade International gem store, told AFP last week how the two Chinese men approached his stall and asked to examine some diamonds closely. De Silva then saw one man put something in his mouth. "When I shouted, one ran away and we managed to catch the man who swallowed the stone," de Silva said. 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. Source: AFP