Gold prices retreated from record highs, losing 350 rupees, to 28,190 rupees per ten grams at Delhi's bullion market, today, on profit-booking by stockists, amid a weak global trend. Silver tumbled 1,300 rupees, to 65,000 rupees per kilo.In the global markets, gold fell 12.42 dollars, to 1,885 dollars an ounce.