ISLAMABAD : Pakistan Gems and Jewellery Development Company (PGJDC) has established a Gems and Jewellery Training and Manufacturing Center (GJTMC) in Gilgit city which has vastly abundant resources of colored gemstone treasures. Most important of these are ruby, topaz, aquamarine, tourmaline and quartz. According to official sources, this center is established to tap the true economic potential of the region. "Center is successfully providing training and common facility center services to the masses".