Jewelry Glossary
PROPORTION FACTORS:
A summary of the decisions made while crafting a diamond which determine the diamond's shape, including its girdle, culet size, spread, durability, and tilt. This is a component of the cut grade, as determined by the AGSL.
See also:
Cut
Symmetry
Durability
Girdle
Culet
Spread
GIA
AGSL
Grading report, grading certificate