The Rider-Waite Tarot deck is the most easily recognizable, that's why I chose to use that deck for my jewelry.  This ring is a size 8, set in sterling silver on a sterling silver band.  I cut out the card's image and ModPodge it to the bezel cup, finishing it off with a glass cabochon.  
The Magician is interpreted as symbolic of power, potential, and the unification of the physical and spiritual worlds.  It is often used as the Querent in divination if the reading is done for a person identifying as male.