Ring Sterling silver with pear shape Black Jack Turquoise. This one of a kind ring is a size 6 3/4 and can be sized up to a 7 3/4. Email for more information on sizing. 
Black Jack Turquoise is a relatively new mine in Tonopah, Nevada USA. It is known for its black or brown heavy matrix with hues of green or sage turquoise and is highly collectible.