Cernunnos is the horned God of the witches. Here portrayed as influenced by the Gundestrup Cauldron, which was found in bog in Denmark. It is believed that the cauldron was stolen by the Vikings broken up and given as a sacrifice. He is holding the rams headed serpent that some associate with the dark half of the year - basically from Scorpio to Aries. The torc is probably a symbol of sovereignty or kingship.
5/8" at widest point