rings [1]
Article of jewelry worn on the finger; it might have symbolic significance.
parts of a ring 
bezel 
Single or multiple head of the ring in which the stone is held by claws.
stone 
Crafted stone whose beauty, rarity and durability confer a certain value. There are three groups: precious, semiprecious and synthetic.
claw 
Small metal hook bent over the stone to hold it in place.
setting 
Part of the bezel surrounding and holding the stone.