NEW YORK, May 15 (Reuters) - U.S. gold futures reversed their downward trek to rally more than one percent to a high at $876 an ounce when the dollar suddenly lost ground against the euro and crude oil gained ground, traders said.

The June gold contract GCM8 on the COMEX division of the New York Mercantile Exchange came off its brief peak to trade around $8.50 higher at $875 an ounce.

Oil got a boost from the dollar's decline after strong economic growth data from France and Germany lifted the euro. (Reporting by Carole Vaporean; Editing by John Picinich)