ONLINE REFERENCES AND TUTORIALS:

Faceting:

https://www.youtube.com/watch?v=UnZTEeT5yFE

Gem Carving:

https://www.youtube.com/watch?v=xgTpGASqrKY

Gem Stone Cutting:

https://www.youtube.com/shorts/AR05c4kWk8c

Sphere Making:

Video - "How It's Made: A Stone Sphere" https://youtu.be/MoV-emestnA

Video - "How Agate Spheres Are Made" https://www.youtube.com/watch?v=ckdTQ10YT-w

PDF - "How To Make A Rock Sphere" Steve Watry Sphere Making Guide

Making a Cabachon:

https://www.youtube.com/watch?v=U_9ASoyvaM0