I am proud to say I finally bit the bullet and invested in the IGS Gemologist Course and bought two books on Amazon: “Secrets of the Gem Trade” and “Guide to Affordable Gemology,” after reading this forum and the IGS articles for some months.
As I have been adding more jewelry to my online Etsy shop, I can see how important it is to understand more about gemstones. So now I can focus on the work and wonders of learning. Thank you IGS and thanks to all the people in this forum who provide help to others. I hope I can do so soon.