Show your Alpha Chi Omega spirit with the Alpha Chi Omega Silver Lyre Necklace. The Silver Lyre Necklace is a great gift for an AXO collegian or alumna. The pendant has a hand carved stamp of the lyre logo for Alpha Chi Omega, is made of PMC or precious metal clay, which is 99.9% silver. The lyre pendant is 3/4 inch in diameter. The lyre necklace has a sterling silver 16 inch or 18 inch chain.