Whenever available use the certificate s cut grade over and above the retailers branded cut grade i e.
Diamond cut grade excellent.
Cut grade is the most important factor in determining the overall appearance of a diamond because a poorly cut diamond will seem dull even with excellent clarity and color.
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.
Ideal and excellent are the highest cut grade obtainable from ags and gia respectively.
That said i would advise you to go for a very good symmetry grade.
How gia grades diamond cut quality for round diamonds.
The golden rule is to choose excellent ideal cut diamonds to achieve superb sparkle.
Excellent very good good fair and poor.
Diamond cut grade is based on a number of factors including symmetry polish brilliance and fire.
Most people are satisfied and feel safe in purchasing a diamond w gia excellent cut grade.
Gia diamond cutting grades for round diamonds range from excellent to poor.
Gia uses a 5 grade hierarchy for cut.
Conversely a well cut diamond can have a slightly lower color g h or clarity si1 si2 and still look quite beautiful due to its superior ability to create sparkle and.
If you are searching for a round brilliant diamond only search for ideal excellent grade diamonds.