Ring Terminology

Head or Top: Attached to the ring shank, the head or top of the ring holds the center stone  in place.
 

Shank: The part of the ring that encircles the finger. Strictly speaking, the shank of the ring does not include the head.
 

Mount: The complete ring without stones

Side Stone: A stone set alongside or encircling a center stone.
 

Solitaire: A single diamond set in a ring.
 

Setting: The manner in which the stones are secured in the mount