American Gem Society has been studying diamond
cut for several years. Our goal is to develop
practical, performance-based cut grading systems
for fancy shape diamonds, round brilliants and
AGS Research Team has utilized and combined different
approaches to try to explain diamond cut. Some
of these are: direct observation, angular spectrum,
ray tracing virtual and wire frame models, color-coded
photography, OctoNus DiamCalc software.
new AGS System will take into account the following
factors: an observer, a close viewing distance,
appearance as distance varies, brilliance, fire,
leakage, scintillation, 'spread', tilt, obscuration,
girdle thickness, length-to-width ratio, polish,
symmetry, durability and taste.
sharing some information on these factors we hope
1. Help the world cut grading community achieve
a better understanding of the complex factors
that affect diamond performance.
2. Fine-tune our system through constructive feedback
diamond, cut, research, performance