You might have heard about the fact that the exact diamond proportions determine the cut of a diamond.
Excellent cut diamond proportions gia.
However if the proportions of a diamond are.
Gia cut grade estimation tables for standard round brilliant cut diamond explains how to locate a particular proportion combination and determine whether it is close to a boundary in the cut grading system.
It will therefore exhibit a lot of sparkle brilliance and scintillation.
This is exactly what you are looking for in a beautiful diamond.
But reports do contain an assessment of the diamond s polish and symmetry.
It also discusses how to use facetware online to obtain a more accurate estimate of a cut grade.
And a simplified proportion.
A description of its shape and cutting style.
For the most brilliance and beauty only consider round brilliant diamonds with an excellent cut.
Gia s approach to diamond cut grade is a proportion based quality system and relies upon a 2 dimensional system to determine a diamond s cut grade.
Excellent very good good fair and poor.
Gia diamond cutting grades for round diamonds range from excellent to poor.
Ensure the symmetry and polish of the diamond are either excellent or.
At this time an overall cut grade for non standard round brilliant diamonds or fancy shaped diamonds such as rectangular oval or square is not available on gia grading reports.
Diamond cut grade is based on a number of factors including symmetry polish brilliance and fire.
Full color 8 page booklet.
Gia uses a 5 grade hierarchy for cut.
Non standard round brilliant cut diamonds.
