Miss Universe 2015 Pia Wurtzbach wore a sapphire ball gown for her final walk, designed by UAE-based Filipino designer Michael Cinco. The finale dress, fully made of beadwork and crystals, was kept tightly under wraps until Wurtzbach’s final walk. "When she wrote to me, detailing to me the dress she wanted, Pia said it should bear similarities to the gown she was wearing during the 2015 pageant," says Cinco. "She wanted me to create something that will encapsulate her first and final walk as…