Wednesday, April 8th, 2015 — Thieves may have got away with a record haul of diamonds after a brazen heist in London’s diamond district netted an estimated £200 million worth (275 million euro, $300 million) of gems, media reported Wednesday. Burglars broke into a vault at a safe deposit centre in Hatton Garden, where many jewellers had left their stocks over the long Easter weekend, and cracked open 70 secure boxes, the police said. Earlier reports put the number of boxes raided at 300. A security guard heard an alarm go off on Friday, a bank holiday when the shops would have been closed, but shut it off when he failed to spot any sign of a disturbance, media reported Wednesday.