NWT Matrix Silver Shungite solitaire ring. Set an 950 copper with 14 K RG over the copper. size 8, there is a magnet in the center of the band under the stone, it is known as magnet therapy. It is believed that the magnets generate healing properties that helps with pain, inflammation, and improve circulation, especially in the fingers and hands. Also copper is also believed to have healing properties, especially for arthritis. These are not my claims. It is what the vendor states about the ring. Whether the magnet works or not, it remains to be seen, but even so the ring is still beautiful.