Why is a diamond s cut so important.
Excellent cut diamond vs ideal.
The reality is that 55 of all round diamonds receive an excellent cut grade from the gia.
An ideal cut diamond is a round brilliant or princess cut diamond that is cut to ideal proportions and angles and has excellent polish and symmetry ratings.
The proportions of the diamond are expressed slightly differently and this is one of the differences between the two gemological laboratories.
The ideal cut diamond is used as benchmark for grading all other diamonds.
For superior brilliance choose a diamond with a cut grade of very good or excellent for round diamonds and good or better in fancy shape diamonds.
The proportions on the left usually serves a diamond with an excellent ideal cut grade ags is stricter than gia in cut grading.
The shallow cut diamond is larger at 6 64 x 6 55mm but looks glassy and lifeless without any sparkle.
The term super ideal cut is generally used to refer to diamonds like the 0 924 carat f color vs 1 clarity brian gavin signature round hearts and arrows cut diamond which is described on the diamond grading report that appears above.
About 25 30 of these excellent diamonds are not recommended.
For the most brilliance and beauty only consider round brilliant diamonds with an excellent cut.
Viewing the diamond sparkle in hd.
This will quickly tell you what cut grade gia would rate your diamond.
When choosing a diamond in this range make sure its symmetry and polish are very good or excellent so that the impact of the above average cut is not obscured.
The deep cut diamond is smaller 6 17 x 6 21mm and exhibits a lack of sparkle in the center.
Super ideal cut vs excellent ideal cut diamonds.
In the simplest terms a diamond graded as ideal cut will be from ags diamond grading laboratory while a diamond graded as excellent cut will be graded from the gia diamond grading laboratory.
However if you want to have a super ideal cut then take note of these parameters.
These are the two most respected grading labs in the usa and like to many titans of industry they have an interesting history.
An ideal cut diamond reflects almost all the light that enters it and is among the rarest cuts.
Ags uses ray tracing and requires tighter proportion ranges while gia uses proportion and human based observation to make the call.
Ensure the symmetry and polish of the diamond are either excellent or very good.
For egl stay away from the laboratory.
