This is a gorgeous and rare 12mm Purple Chalcedony (though the color is really a pretty blue). It comes with a 22” Stainless Steel chain.

A little note on Chalcedony:

It is said that Purple Chalcedony brings the mind, body, emotions and spirit into alignment and harmony.  Chalcedony instills feelings of benevolence and generosity.  It alleviates hostility and transforms melancholy into joy. Eases self-doubt.  Creates openness and enthusiasm.  Absorbs and dissipates negative thoughts and emotions.