October-Opals and tourmaline represent hope, creativity and innocence. They also protect the wearer from envious, mal-intentioned people.
November-Yellow topaz and citrine are associated with strength and healing for both body and mind. They offer protection to travelers and support good mental health.
December-Turquoise, blue topaz and tanzanite represent a happy life that is filled with good fortune. Headaches may be relieved or prevented. Ancient practitioners believed that turquoise would actually change color when the wearer was ill or in danger.