Gold Zodiac Necklace Libra with birthstone multicolor Tourmaline. about a 18 inch chain. The pendant is a 1.25 inch circle. The necklace features both the Kabbalistic letters of the month in Hebrew AND the birthstone of the month! People born between September 23 - October 23 are born within the sun sign Libra. Perfect gift for Hanukkah and Christmas!