Diamond Cut Rating Tool

When gia developed its diamond cut grading system it conducted tens of thousands of observations of real diamonds.

Diamond cut rating tool.

Hca does not use symmetry polish and minor facets. 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. You will get a nice diamond if hca score is. The holloway cut adviser u s.

Every diamond certified by the gia undergoes a thorough independent evaluation. 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. 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. Each of the four c s carat weight cut color clarity is accompanied by a diamond chart illustrating the differences between grades.

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. Cut grade should be a primary consideration when evaluating a diamond. 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. 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.

American gem society taking cut grading to a higher level. Holloway cut adviser is a tool to find the performance of round cut diamond and used to estimate cut quality.