Pretty soon I discovered how relatively easy it is to make your own ring (or any other. The method that I have used is called the Lost Wax Investment Casting .
Jewelry Casting Supplies – Lost wax jewelry casting and white metal spin casting tools and supplies,. Electric vulcanizers for making rubber molds for jewelry.
How It's Made: Lost Wax Casting Part 2 – Casting. January 30, 2018. The wax ring is attached to a rubber base to create a mold. A wax rod called a sprue .
It is a pretty detailed though brief tutorial for those interested in doing their own lost wax casting, and it also gives a look at how much work goes in to each ring.