Hi, I’m new, and I don’t know what these short forms mean in the pricing guide. “vstbG 5/5; bG 5/5 or 6/5; vslbG 5/5” I know that VS refers to the degree of inclusions in a stone, but the rest is lost on me. Any guidance appreciated - or is there a place in the website that explains this.
Hi Catherine,
Those codes actually describe a gem’s color. They’re written using the GIA gem color grading system for hue, tone, and saturation. We have a brief article and a longer article on the topic.
For example, “vstbG 5/5” means “very strong blue-Green, tone level 5/saturation level 5.”
Be aware that some gemstones may also have inclusion grade information on the price guide in addition to color information.
Hope this helps.
Pedro
IGS Admin
Thank you Pedro! That helps for sure. I am just finding my way around the website.