The Bark Wall Ring seems to just love a left index finger. However, rules were made to be broken so you should probably just wear it on which ever finger you damn well please!
available in sterling silver, sterling silver with green patina, gold plated brass, gold vermeil*, and gunmetal plated brass
~ roughly 3/4" high at tallest point
~ comes in sizes 6, 7, 8
* gold plated sterling silver