I'm thrilled that I could use this gorgeously cut stone in a necklace! It comes with a brown ribbon, and can be worn either side. Each side is different- one side is blue/brown/mauve. The other side is orange/green/brown. The pendant measures about 2 inches (about 5cm).
You can purchase it here: http://www.etsy.com/view_listing.php?listing_id=30787156