A rare mix between medieval and cyberpunk, so yes it looks like fire and neon lights.
The jewel was modeled in 3Design cad V10. and all the render scene was then made in Blender 3.2
I created this art during the making of a render tutorial that I will post some day.
You can see the modeling tutorial https://youtu.be/nzxZQC1fFkM
There is also a video of the drawing