Gold rose 200 rupees, to 30,550 rupees per ten grams at Delhi's bullion market, on Friday, on buying by jewellers amid a firm global trend. Silver surged 1,300 rupees to 44,000 rupees per kilo, on increased offtake by industrial units and coin makers. Silver coins remained unchanged at 74,000 rupees for buying 100 pieces.Overseas, gold added 0.8 per cent to 1,332 dollars an ounce.Silver spurted 3.6 percent to 19.39 dollars per ounce in Singapore.