Gold gained momentum in the early electronic trades taking a cue from firmer crude oil prices and weaker dollar. In London spot markets gold continued to be offered at higher tick and was quoting $9 stronger at $684.8 per troy ounce. Safe heaven investment in gold is also picking-up as the tension grows between US and Iran after it defied UN demands to stop enriching uranium. On the currency markets, the dollar traded fractionally lower against other major currencies early Friday. Comex warehouse stocks remained unchanged at 7,487,276 ounces. | TUG-OF-WAR: Bulls vs. Bears |