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Diamond 4C
Fourth C - Cutting (Turning) for Diamond Awareness
The diamond's workmanship is an acquired grade of the diamond.The diamond cutter's polished hand graded, , ,Because the color and clarity are naturally determined. There is no way to change it., , ,But good or bad carpentry can play into the diamond's sparkle.
The cut of a diamond refers to the symmetry, proportions, brilliance and refraction of the diamond. A good cut gives a diamond more brilliance and sparkle, and is therefore a very important factor in the quality of a diamond.
There are 58 round brilliant faceted diamonds commonly available on the market, and GIA also uses round brilliant facets as the basis for its cut grades, which are primarily categorized as Cut grade (scale).,Polish, Symmetry.
The GIA uses the following grades to describe the cut of a diamond.
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Excellent: The cut is very good and maximizes the brilliance of the diamond.
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Very Good: The cut is very good, and the luster and beauty of the diamonds are excellent.
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Good: The cut is good, and the luster and beauty of the diamond is relatively excellent.
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Fair: Average cut, average luster and beauty of the diamond.
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Poor: Poor cut, poor luster and beauty of the diamond.
Cut Grade Ratio
It is the standard of measurement for each petal or position of the diamond, as the diamond is calculated to need the appropriate standard size to bring out the best internal reflection and beautiful colorful light.
Polish
The smoother the surface is, the more reflective the surface will be.
Symmetry
Is there any uneven size of each facet or the whole diamond, such as whether the circumference is rounded or not, or whether the left side and the right side, the top and the bottom are the same as in a mirror.
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