If you are interested in making jewelery that is very durable, you can use resin to protect it in any of GSC's metal findings. Resin can be intimidating, but is easier than you might think.
You have to be careful of fumes, etc. so resin may not be for you. I'll be adding some videos soon that show some less toxic and less complex solutions.
The rings and pendants pictured here are made with resin, which can be a good solution for deeper-welled findings. The pendants could have been done using other solutions which I will address more in-depth once I have a video or two to show.