Prongs

A collection of wires, pressed over the girdle of a gemstone, to secure the stone in a setting. A prong setting consists of a series of metal wires or claws designed to hold a stone in place. They are often arranged in groups of four or six.

 
Nephrite and Gold Nugget Ring with Prong Surround.

Nephrite and Gold Nugget Ring with Prong Surround.