Gasps of admiration were audible Saturday afternoon as Prabal Gurung sent one spectacular look after another down the runway. As one of the industry’s most innovative forces, it was fitting that Gurung showed his Fall 2012 collection at the Frank Gehry-designed IAC Building. A modern sense of space age style managed to capture the imagination while still feeling utterly wearable. Standout moments included a gold rush of gilded looks, ivory gowns fit for the modern bride, and a series of futuristic prints so expertly sculpted. Gurung awoke the crowd from a dreary winter slumber with a show that pushed fashion forward.