Recently I tried sandcasting a stone in place again. I use CZ stones. You can get them in a range of colors and they seem to hold up pretty well in most of the casting experiments I have done. The ones I lost, I broke out and replaced - setting them like a flush set stone. Here are some photos and videos from the process.
This video shows the process I use to sandcast my popular F Bomb key chains. All my casting equipment (sand and frame) I get from https://www.etsy.com/shop/DIYJewelryCasting I also am in his wonderful group that has amazing tutorial videos and wonderful people to help you troubleshoot any issues you have. Find it on FB https://www.facebook.com/groups/262359177616661I use a MAPP gas torch ( can get them from local hardware stores). I will try and make another video soon and include voice directions for all the steps I go thru, this was just a quick demo and we were chatting about nothing related to casting. These key chains can be purchased from my website www.loraleeartist.net Feel free to ask any questions, I happily share knowledge and if I can't help, I'll direct you to someone that can. Thanks for watching.
I carved this Baseball Cross out of wax and used this to create a sterling silver version. Sandcasting is great fun and it's always exciting at the end to open it up and see the results. Now it just needs some clean up, a jump ring bail added and ready to go.