Wolf head ring. Get it in metal: http://shpws.me/JwnA
Contact me for custom size request. This video shows blackened polished brass and silver. You will get the ring without blackening, but you can do it yourself using a boiled egg or special chemicals Just search "How to oxidize silver (or brass)" in the Internet. Later you just buff it with soft wire wool and polish it up on the outside, the crevices will remain black.