There are different grading systems to define diamond cut but the most common agreed on one is the cut chart created by gia since it s known to be the best diamond certification lab.
Excellent cut diamond gia.
If a gia diamond receives an excellent grade for polish symmetry and cut it is considered a triple excellent diamond.
The gia cut grading system applies to the most popular cutting style the standard round brilliant and all clarities across the d to z color range.
Gia uses a 5 grade hierarchy for cut.
The gia suggest that diamond with an excellent grade provide the highest possible level of fire and brilliance.
How does pavilion depth affect a diamond s cut.
Excellent very good good fair and poor.
Gia s approach to diamond cut grade is a proportion based quality system for round brilliant colorless diamonds.
Poor fair good very good and excellent called ideal as well.
A gia report can list overall cut grade as excellent with either or both polish and symmetry grades being at least very good.
Gia cut grading chart categorizes diamond cut into 5 grades.
The distance from the bottom of the girdle to the culet is the pavilion depth.
There are five cut grades.
The gia diamond cut scale for standard round brilliant diamonds in the d to z diamond color range contains 5 grades ranging from excellent to poor and is the definitive scale for classifying diamond cuts.
These diamonds represent the highest cut grade that the gia awards their diamonds.
What is diamond cut grading chart.
A diamond with an excellent cut grade is very bright.
