Al Gilbertson article about cut and appearance of gems

[Garry H (Cut Nut)]

"PART 3 OF 5 IN THE SERIES: VALUE FACTORS, DESIGN, AND CUT QUALITY OF COLORED GEMSTONES (NON-DIAMOND)"
It has relevance to diamonds too IMHO
https://www.gia.edu/gia-news-resear...Xek1nQXN3N0lZc1VFY3M4ckZrRzlCcGFOTENKYVE9PSJ9

 

[MarionC]

Thank you, Garry. A most interesting read.