







The diamond cut
A Diamond’s Cut Unleashes Its Light
Diamonds are renowned for their ability to transmit light and sparkle so intensely. We often think of a diamond’s cut as shape (round, heart, oval, marquise, pear), but a diamond’s cut grade is really about how well a diamond’s facets interact with light.
The diamond cut is an important element in determining the quality of a diamond. Cutting and polishing operations require years of professionalism and experience and will determine the price of the diamond
There are 5 levels of diamond polishing:
Excellent - Excellent polishing will maximize the light that comes in and out of the diamond perfectly.
Very good - Very good / close to perfect polishing allows a lot of sparkling and diamond life.
GOOD- (good polishing) Good Cuts don’t reflect light as much as the higher grades because their fire, brilliance, and scintillation are not up to par..
FAIR- (relatively fair polishing) The common polishing of cheap diamonds.
POOR- (poor polishing) Polishing with poor proportions, good and ineffective polishing diamond will not show sparkle and light.
Light / Fire- :
This means the level of sparkle in the diamond. A very good diamond will give maximum "fire" and the light returns like a dazzling game of parallel mirrors, and all the light will drain at the top of the diamond
Flat or high-polished diamond:
Flat diamond will not give good light reflections and all the light coming from the top of diamond will move down and therefore the diamond will not sparkle
A high cut diamond also will not give the light reflections and all its light will drain to the bottom of the diamond.
Excellent diamond cut with excellent polishing or VERY GOOD in very good polishing will receive the light from the top of the diamond. The light will be reflected in all the diamond sides as in a mirror game and will sparkle again at the top of the diamond
Perfect proportions
The diamond proportions are very important and consist of 56 different diamond cuttings
Table Size |
The top horizontal facet of the diamond. |
Pavilion Depth |
The lower portion from the bottom edge of the girdle to the culet. |
Crown Height |
The upper portion, from the top edge of the girdle to the table. |
Star Length
|
The horizontally projected distance from the point of the star facet to the edge of the table, relative to the distance between the table edge and the girdle edge. |
Girdle Thickness |
The middle portion of a diamond, a narrow section separating the crown from the pavilion, and functions as the diamond’s setting edge. |
Lower Girdle |
This ratio is measured by calculating how long the lower girdle facets are relative to the length of the pavilion. |
Culet |
The small facet at the bottom intended to prevent chipping and to the point. |