Cabochons 

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.  Cabs can be wire wrapped, captured with beads and set in bezels!

 

A cabochon may be cut in any shape, though oval is the most common. The term comes from the French caboche, meaning knob or small dome. Unless indicated within the description, these cabs are uncalibrated.

Pronunciation: cab-oh-shawn.   

By Shape
On mobile scroll down to see by material

By Material
Many shapes to choose from within each type