Girdle is a narrow rim around the widest fringe of the diamond. Also, read why does a diamond cutter cut a thick Girdle?
What is the Diamond Girdle and is it important?
The Anatomy Of A Gemstone, Moissanite or Diamond! What is a Facet
How to distinguish Diamonds from imitations. Du Gemology course
JCRS Jewelry Insurance Issues
Diamond Girdle - A cutter's compass in the cutting process
What's a Diamond Girdle?
What Makes Some Gems More Valuable Than Others
Diamond Girdle – Kobelli
What is a Diamond Girdle? Rating Facts You Need To Know! - Gemistone
What Is the Girdle of a Diamond?