'The world's most expensive ham' has gone on sale in London, according to retailer Selfridges.

BBC News reports that the leg of Iberico ham, which costs £1,800, went on sale at the food hall in the retailer's flagship store in Oxford Street in central London.

The 7kg ham leg comes with its own DNA certificate as proof of authenticity.

Pig farmer and ham expert, Manuel Maldonado, selected 50 pigs that were reared in Extremadura in western Spain. The pigs were fed on a diet of acorns and roots to give the ham a distinctive flavour.

After being slaughtered their ham was salted and cured for three years, before going on sale in a hand-made wooden box wrapped in an apron made by a Spanish tailor.

Selfridges fresh food buyer, Andrew Cavanna told the BBC: "Connoisseurs will appreciate the melt-in-the-mouth texture of this truly amazing Spanish ham.

"The leg may seem to have a large price tag but when you think about the amount of care taken from breeding right through to the curing, it is actually amazing value.

"Every single gram will be savoured as one of life's incredible gourmet luxuries."