These stones are great. You simply just drill a hole in your fired silver (so you can use them in anything you can drill a hole in) and pop the gem in. As the white zirconia stone comes in a plastic setting (which come in 7 different colours for you to choose from), you are unable to fire them. The drilled hole needs to be 2.1-2.3mm deep, and 3.1mm wide. We have a 3.1mm drill bit available, click here to see.
See below for some instructions: