How gemstone dice be made？
First of all, factories that process gemstone purchase some rough stone of gemstone.
Next step is to cut these rough stones into the desired shape, and then use the machine for preliminary grinding. You can refer to the steps in the following link:
https://imgur.com/gallery/70I21
Preliminary grinding
Next, it will be put into the machine for polishing,
The polished dice have a smooth surface and are already very beautiful
The next step is to engrave the pattern you need on the dice. This step usually uses a laser engraving machine. Not all gemstones are suitable for laser engraving.
After the engraving is completed, the pattern is coloured, usually using paint as a pigment, which is artificially coloured.