Prong setting is one of the most common ways to set diamonds and other gems in jewelry. The concept is simple but the execution is not. The basic idea is to carve seats into prongs to hold a stone securely. Like most complex techniques, breaking the process down into steps makes it easier to learn the technique and to control your work.In the following elementary lesson on prong setting, master goldsmith and educator Alan Revere breaks down the procedures into the smallest increments to demonstrate the most elementary and important steps in prong setting. For this reason, instruction on prong setting includes several added steps to ensure accuracy, including the use of a file to cut seats in the prongs. This 14k gold cast mounting has one large four-prong setting for a diamond. The prongs are hefty and there are no other settings or obstacles to contend with.