(Bloomberg) - Bordeaux wine estates pushed prices higher as the sales campaign for the 2015 vintage quickened, with Chateau Haut Bailly increased more than 50 percent and Chateau Cos d’Estournel up more than 40 percent, according to Liv-ex data.

Haut Bailly, a grand cru classe in Pessac Leognan south of the city, will charge 66 euros ($74) a bottle, an increase of 53 percent relative to its 2014 wines, according to Liv-ex. Prices increased 42 percent at Cos d’Estournel in Saint Estephe to 120 euros and 46 percent at Chateau Pichon Longueville Baron in Pauillac to 96 euros.

The pace of Bordeaux wine-price increases has accelerated, with gains of more than 40 percent for leading estates comparing with increases averaging about 32 percent the previous week for other classed growths around the region and gains of 19 percent in late May. Some top estates have still not set prices for their new “en primeur” wines sold while still in the barrel, two months after presenting them in early April tastings.

“With the Bordeaux 2015 campaign now entering its final significant stretch, one trend has been noticeable,” Liv-ex wrote in its market blog. “The increases are increasing.” It said that a prediction back in April by its members that prices would rise 18 percent on average for 2015 “now seems wildly optimistic for buyers.”