Blue chalcedony set in a halo of sterling silver. App. 1 3/4 inch long from the top of the ear wire. Chalcedony is a member of the quartz family and occasionally contains a small amount of opal. Chalcedony is said to encourage brotherhood among all and symbolizes benevolence and good will, alleviates hostilites, irritability and melancholy. Will arrive in a gift box. A great gift idea and a fashion statement.