Gold, who won halfpipe silver at the inaugural Winter Youth Olympics this time last year, proved age is little more than a number as she lived up to her name in the final in Canada.
The 16-year-old, making her World Championship debut, landed a score of 79.00 on her first run to claim the win with Crawford posting 66.25 first time out and then 77.25 with her second effort.
That relegated the Australian back to the position she finished in 2009 while France's Sophie Rodriguez completed the podium in third with a first-run effort of 72.50 for bronze.
Meanwhile in the men's halfpipe competition, Podladtchikov, who claimed silver back in 2011, won a tight final by just 0.5 points ahead of Taku Hiraoka of Japan in Stoneham.
Hiraoka set the standard after scoring 89.50 with his first run in comparison to just 64.50 from Podladtchikov however the Swiss snowboarder was up for the battle for gold.
He was awarded 94.25 for his second run with Hiraoka narrowly behind with 93.75 as Finland's Markus Malin again took bronze with a score just a point better than Podladtchikov’s teammate Christian Haller.
Britain had two representatives in the men's halfpipe competition with Vancouver Winter Olympian Ben Kilner progressing out of qualifying before ranking 16th overall with a best effort of 63.50.
That marked the Scottish snowboarder's best ever World Championship finish having claimed 38th on his debut as a 16-year-old in 2005 before ranking 51st in 2007 and then 42nd in 2009.
Meanwhile fellow Brit Dominic Harington, who is competing at his third World Championships, was 39th in qualifying to better his effort of 58th four years ago in Korea.