Prices of the top Bordeaux are once more coming under scrutiny as the value of the 2000 vintage soared by as much as 25% in the last week, after Robert Parker the US wine critic heaped praise upon it.

Parker's influence on the prices of wine has always been controversial and the latest value leap is sure to open the debate over the influence his palate has over the success of a wine.

Last week he announced that the 200 Bordeaux vintage was "undoubtedly the greatest year Bordeaux has ever experienced".

Prices have leapt accordingly, with one expert estimating a rise of 3-4% every day. surged immediately. Gary Boom, a director at brokerage Bordeaux Index, said that prices "are rising 3% to 4% a day".

Wine from the likes of Haut Brion have risen from $1,850 a case to $2,400 within three days. Chateau Margaux and Chateau Latour, are up from $2,100 to $2,575.

Parker said: "The vintage is remarkably consistent from top to bottom. There has never been a year where so many exceptional wines were produced."