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Diamond Cut
Ideal
Tremendous Sparkle. Excellent Polish and Symmetry.
Very Good
Tremendous Sparkle. Excellent Polish and Symmetry.
Good
Tremendous Sparkle. Excellent Polish and Symmetry.
Poor
Tremendous Sparkle. Excellent Polish and Symmetry.
Diamond cut defines Polish, Facets, Reflective Quantities and Symmetry. The overall beauty of a Diamond hangs more on the Cut than any other factor. Diamonds with excellent cut grade emit all incoming light.
When a diamond is shaped from a rough stone, the faceted stone must balance the appearance along with yield. This is the reason the cut grade of a diamond is very important. In an ideal or excellent cut diamond, all incoming light is reflected and attracts wearers. In the case of a diamond with a poor cut grade, only 20% of the total incoming light is reflected and rest goes through tip.
Reflection
Brilliance
WHITE LIGHT
Brilliance or Brightness of a diamond is due to inner and outer reflection. Entered light from the top breaks into spectrum of colors and reflects inside and exists from the top along with a white light.
Fire
COLOR LIGHT
Fire is a scattering of white light into color spectrum. When light flashes on the diamond, the incoming light breaks into spectrum of colors and after inside reflection, it comes out separately into color flashes along with white light.
Scintillation
SCINTILLATION
Scintillation is the white and colored sparks viewed when it is motion. Diamonds are appraised with reflection and refraction properties.
Physical Features
Table
It is the largest plane surface of the diamond visible from the top view. A diamond' s table is the largest facet of the stone, comprising the flat surface on the top. The table percentage is the ratio of the width of the diamond' s top facet in relation to the width of the entire stone. The right ratio results in a large amount of fire and brilliance. To learn about the ideal table percentage for each diamond shape, visit our Diamond Shape page.
Depth
Diamond depth is the height of a diamond in millimeters measured from its top (table) to bottom (culet). The depth percentage measures the ratio of a diamond' s depth to its total width. Depth can significantly impact the quality of a diamond' s cut and the amount of light it reflects.
Girdle
Forming the outer edge of the diamond, this is where the crown and the pavilion meet and is the widest part of a diamond. This is the portion of the diamond between the crown and the pavilion, essentially spanning the width of the stone from side to side. The measurement of the girdle represents the perimeter of the diamond. A diamond' s girdle can be rough, polished, or faceted, and does not typically affect the quality or appearance of the stone.
Crown
This is the top portion of the diamond, located above the girdle and extending below the table. A diamond' s crown extends from the top of the stone (the ' table' ) down to the girdle (the widest point of the diamond). Crowns can be comprised of step cut facets or brilliant cut facets.
Pavilion
Located at the bottom of the diamond, the pavilion bridges the girdle and the culet and form at the bottom (culet). Located between the girdle and the culet (point), the pavilion is integral to the stone' s light reflecting properties. A properly cut pavilion will allow the maximum amount of light to reflect from the surface of the stone. An excessively deep or shallow diamond can cause light to escape out of the bottom and sides, reducing its sparkle.
Culet
It is a sharp point at the bottom of the diamond, just below the pavilion. It is usually not visible to the naked eye. (Or) the smallest facet of a diamond, the cutlet is located at the very bottom of the stone. If the diamond ends in a point, the diamond grading report will show a value of ' None' for the culet designation. This small facet was originally intended to protect the diamond' s pavilion, although today' s settings are usually strong enough to render it unnecessary.
Grading of a Diamond
Let’s have a look at how diamond cut impacts the stone’s quality.
Very Good: To emit the highest level of brilliance and fire, this very good cut is a superior choice. Because overall received light is reflected throughout the diamond.
Good: Finest quality cut that offers maximum brightness equal to ideal cut. It reflects a large majority of the light entered through the diamonds table.
Fair:As the name says it is worth buying. Fair cut diamonds showcase brilliance and sparkle, which reflects the majority of the light entered. These are beautiful, qualitative and budget friendly.
Poor:Poor cut diamonds offer little brilliance, in this type of cut the light may easily appear on the sides and bottom. It fits adequately for small carats and as side stones. Bluehira won’t carry these.