Gold gained 185 rupees, to 26,500 rupees per ten grams at Delhi's bullion market on Saturday, on buying by jewellers and retailers, amid a firm global trend. Silver surged 1,450 rupees, to 38,000 rupees per kilo, on increased offtake by industrial units and coin manufacturers. Silver coins spurted 1,000 rupees, to 56,000 rupees for buying 100 pieces.