Navajo Naja Necklace -The familiar form of the inverted cresent known as the "naja" is found in various design forms throughout the world. This Naja Necklace is Navajo-crafted out of dozens of intricate Sterling Silver beads and a host of polished Turquoise Stones. (17" Long).Navajo Naja Earrings Matching Earrings of Turquoise and Sterling Silver. (Pierced Only) - (1" Long).