Gold dropped 50 rupees, to 30,750 rupees per ten grams at Delhi's bullion market, today, on profit-booking by stockists at existing higher levels, amid a weak global trend. Silver fell 190 rupees, to 44,940 rupees per kilo, on lack of buying support from industrial units and coin-makers. Silver coins remained steady, at 86,000 rupees for buying 100 pieces.Overseas, gold fell 0.6 per cent, to 1,284 dollars an ounce. Silver lost 0.3 per cent, to 20.16 dollars an ounce.