Gold prices on Wednesday jumped Rs 194 to hit an all-time high of Rs 78,850 per 10 grams in futures trade as speculators created positions on a firm spot demand.

On the Multi Commodity Exchange, gold contracts for December delivery traded higher by Rs 194 or 0.25 per cent at Rs 78,850 per 10 grams in a business turnover of 15,155 lots.

Fresh positions built up by participants led to a rise in gold prices, analysts said.