Popular in jewelry making and in the gemstone world, a cabochon, often referred to as a 'cab', is a stone that is cut with a convex or domed top without any faceting and a flat or slightly domed back. In other words, it is domed on one side and flat on the other.
A cabochon may be cut in any shape, though oval is by far the most common. The term comes from the French caboche, meaning knob or small dome.
Cabs can be wire wrapped, captured with beads and set in bezels!
Commonly misspelled as Cabachon