In Gary Roskins book there is a photo stating the a natural has made the girdle edge thin. It then says GIA measures the girdle a various points along the girdle due to possible danger as Thin, Very Thin, Extremely Thin.
Now lots of diamonds which are ideal cuts are Thin on the Girdle measurement so what is the danger here? Is it different if the girdle goes from medium to Thin where a natural is as compared to being a girdle which is graded as Thin all the way around?
I know I have read about Very Thin and Extremely Thin but this book is saying that GIA sees possible danger in thin or is it not?
Now lots of diamonds which are ideal cuts are Thin on the Girdle measurement so what is the danger here? Is it different if the girdle goes from medium to Thin where a natural is as compared to being a girdle which is graded as Thin all the way around?
I know I have read about Very Thin and Extremely Thin but this book is saying that GIA sees possible danger in thin or is it not?