To make it I hammered out a nickel and shaped into a heart. Then I drilled a small hole in the center and used a cone shaped diamond bur to bevel the hole for the stone (a set of 16 different burs cost me $7 at Harbor Freight Tools). The stone I got from target. Once I liked the fit I soldered a small piece of wire to the back of the pendant to hold the stone in place. I made another loop, again from nickel, and soldered it to the back of the heart. All kinds of variations of this can easily be done. You can find more indepth instructions for a project like this under Teardrop Pendant and Solitaire Hex Bolt. Good luck.