I am thinning my jewelry collection, haven’t worn this in a great while. I THINK it is purple charoite, which has been being used since the 1940s. The purple is a nice mix with turquoise to make both colors pop. . I do not know how old this bracelet is. I do know it is sterling, marked on the inside, along with something else I cannot read. Please see photos for measurements. I did my best there. It is a handsome piece, you can see deep etching or carving on the sides. Quite a solid bracelet. Questions are welcome. Sales are final. Thank you for shopping my closet.🍃🌸