This Petoskey Stone Round bracelet is gold plated and is for folks of all ages. The Petoskey Stone is the Michigan state stone. This stone measures 30mm around and is handcrafted by artisans with combined experience of over 60 years. The stone is mounted on a gold plated closed cuff bracelet that measures approximately 2-1/2” wide by 2” deep and has a front opening for slipping on and off.