The cut is one of the four Cs and is therefore one of the most important criteria for determining the quality of a diamond, as it is largely responsible for its brilliance and its beguiling sparkle. It is important to know that the rainbow-colored shine of a diamond, its so-called fire, is best shown off with an optimal cut.
The connection between the cut and the fire of a diamond
The high dispersion of diamonds means that they shimmer in the color spectrum of the rainbow - provided they have a favorable cut. A diamond is naturally colorless, but the different refraction of the incident light rays creates the colorful variety of colors. However, if the cut is too pointed or too flat, this effect is lost. Only with ideal proportions does the light travel from facet to facet and be reflected back into the viewer's eye.
Criteria for high grinding quality
When evaluating the cut, the proportions of the diamond, the arrangement of the facets , the angles and the thickness of the girdle are particularly important. It also plays a role how smoothly and evenly the diamond has been polished.
The rating scale
Only very few diamonds have the optimal cut quality of excellent (≙ ideal). Such gemstones have an impressive brilliance because they reflect the light completely. Diamonds with a very good cut also have a wonderful radiance and deviate only very slightly from the ideal dimensions. In the subsequent grades, the fire is no longer as beautiful.
Rings with diamonds
Things to know
4 Cs of Diamonds
