According to the GIA Diamond Cutting scale, vg refers to “very good” cut, ex refers to “ideal” cut, ex cut is one level above vg cut. Among them, the diamond cutting ratio of ex cutting grade is more reasonable and the fire color effect is better. The price difference between ex and vg grade is about 7-12%.
From high to low, the diamond cutting rating is EXcellent (EX, ideal cutting), Very Good (VG, very Good cutting), Good (G, good cutting), Fair (F, average cutting), and Poor (P, poor cutting).
EX — ideal cutter
The word “EX” stands for “EXcellent”, meaning ideal cut, and only 3% of first-class, high-quality diamonds in the industry meet this cutting standard. This cut grade diamond reflects almost all of the light that enters its interior, creating a brilliant and attractive fire color.
VG — Very easy to cut
Diamond cutter “VG” stands for “Very Good”, meaning a very good cut, and about 15% of the diamonds in the industry reach this grade. VG cutters can reflect most of the light entering the diamond and still have an attractive fire color.
The difference between diamond cutting vg and ex is as follows:
① Price difference
Cutters account for 15 to 30 percent of the price of a diamond, and every grade change affects the final offer.
If it is 40-50 diamond, the price difference between vg and ex cutting grade diamond is about 500 yuan. lab grown diamonds manufacturer. 50-70 points of the diamond, its price difference to 1000-2000 yuan; The larger the diamond, the greater the impact of the cut grade on the diamond price. For a 1ct diamond, for example, the price difference between EX and VG cut grade is roughly 7-12%.
② diamond diameter
The most obvious difference between ex and vg is the diameter, which is the size of a diamond.
Most diamond diameters of VG cutters are less than 3EX. Normal 3EX diameter is about 6.4–6.5, VG diameter is about 6.2–6.3. The diamond diameter is larger, the finished product after setting is larger, the actual wearing effect will be improved.
However, this situation is not absolute, some VG above cut diamond diameter is also larger, need to look for carefully.
③ Fire color difference
The quality of the cut will affect the pyrochroma of the diamond. A small part of the vg cutting diamond, in the fire color do not lose ex cutting grade diamonds, but the vast majority of the vg cutting diamond is still less.
Diamond cutter vg and ex which good
ex cut diamonds have a certain collection effect, and the average consumer for the best visual effect is preferred EX grade diamonds; However, in terms of price, VG diamonds are also a cost-effective choice for everyday wear, with good visual effects and a low price.
In general, diamond EX and VG cutter selection can be combined with their own needs. In addition, for different diamond sizes, it is recommended to select EX cutting for diamonds above 1ct, and VG cutting level can be selected for diamonds below 1ct.