I really thought there would be more involved in making gemstones but apparently if it's a corundum (rubies, sapphires) it's like.
Okay it's not something you could do in my garage because I don't have a welder, but I do know several guys who do, and that's the primary barrier.
Knowing a guy with a welder.
If you can cast bronze, you can make rubies.
IDK what to do with this information

















