Diamond Cut Rating Tool

Hca does not use symmetry polish and minor facets.
Diamond cut rating tool. Cut grade should be a primary consideration when evaluating a diamond. Here you will learn how gia diamond grades are established and how those grades affect the diamond s price. Because cut grade provides a single rating which weighs the combined impact of all of the factors listed above on a diamond s visual performance it is a simple yet vital tool in evaluating a diamond. Patent 7 251 619 is a rejection tool to help you narrow your search for only round diamonds potential light return fire scintillation and spread based on the rounded proportion information from a grading report.
Diamond cut beauty is in the eye of the beholder. American gem society taking cut grading to a higher level. Every diamond certified by the gia undergoes a thorough independent evaluation. For a limited time the hca is now available free for all stones in our diamond search results just click on the hca column of the diamond.
Each of the four c s carat weight cut color clarity is accompanied by a diamond chart illustrating the differences between grades. The holloway cut adviser u s. The overall beauty of a diamond lies in its cut quality but cut is the most difficult and complicated c to assess because many variables go into determining a cut grade. As a diamond deviates further from having ideal light performance so does the numerical grading value as it starts increasing from 1 excellent 2 very good.
Holloway cut adviser is a tool to find the performance of round cut diamond and used to estimate cut quality. Ags diamond quality document ags was the first independent grading organization to utilize a numerical system in their reports with 0 being the highest grade.