A sapphire is said to bring serenity and purity to the wearer. Wear a pink sapphire pendant for serenity and purity with a splash of fun and irreverence. Opal symbolizes confidence, clarity, and calmness and is said to promote faith in oneself and hope for the future. Wear an opal pendant to capture these qualities. Tanzanite is the gem of fortune and luck. A tanzanite pendant is said to ease stress and free one from bad habits.