The most expensive Riesling ever, according to a German auctioneer, has been sold in Germany. A rare double magnum of G-Max 2009 dry Riesling made by Weingut Keller was sold for €3,998.40 to an anonymous Luxembourg collector late last month. ‘That price is the highest for a young dry Riesling sold at auction I can remember,’ said Hans Jürgen Podzun, head of the Koblenz Chamber of Commerce. Podzun was auctioneer of the 26 September Bad Kreuznach auction in the German state ofRhineland-Palatinate.