Gold prices eased in Asia on Wednesday in a bout of mild profit-taking as geopolitical tensions on the Korean peninsula appear off the boil for now, though investors stayed cautious with elections ahead in Europe and with an eye on U.S. monetary policy. Gold for June delivery on the Comex division of the New York Mercantile Exchange dipped 0.28% to $1,290.50 a troy ounce. Silver futures traded at $18.290 a troy ounce, up 0.10%, while copper gained 0.12% to $2.533 a pound.