Snapping a four-day rally, gold plunged 295 rupees, to 18,850 rupees per ten grams at Delhi's bullion market, today. Silver ready slumped 550 rupees, to 29,600 rupees per kilo.In New York, gold had yesterday touched a record high of 1,266.50 dollars an ounce, but then slid 23.90 dollars, to 1,232.60 dollars an ounce.