Lucky Key Pendant Necklace. This necklace is 27 inches long with a 2.5 inch long pendant. The necklace itself is made with black satin cord. The pendant is a double-sided bronze key with a clover like handle cutout, embellished with a bit more luck by adding a chunk of polished Diopside (green stone) and a glimmering bronze and gold flecked bead. Open all kinds of lucky possibilities with this necklace.