A diamond's light performance depends a great deal on its cut. Its cut grade is measured using an optical device. A three-dimensional object is created to measure its angularity, length, width and depth. All this greatly effects how light travels through it and thus determines its brilliance. Polish and symmetry are also important in this regard. The polish describes the smoothness of the different sides and the symmetry the alignment.
The polish and symmetry grades are always mentioned in the diamond detail page and within the GIA or AGSL diamond grading report. For the best, look for a symmetry grade of excellent (EX), very good (VG), or good (G) for a GIA graded diamond, and ideal (ID), excellent (EX), very good (VG), or good (G) for an AGSL graded diamond. Diamonds with grades of (F) or poor (P) should not be bought.
The different kinds of cuts:
- Ideal Cut:
The ideal cut reflects nearly all light that enters the diamond. It’s splendid but rare.
- Very Good Cut:
A very good cut reflect almost the same light as an ideal cut but for a lesser price. The top 15% of diamonds come under this category.
- Good Cut:
A diamond with a good cut reflects most of the light that enters it. It’s price is much lower than the two mentioned above.
- Fair Cut:
A diamond with a fair cut is still considered a good quality one. However, these diamonds are less brilliant then the above.
- Poor Cut:
Diamonds with a poor cut tend to lose most of the light that falls on them. Fortunately, we don’t have any of these poorly cut diamonds.
|
Cut