What are the Perfect Diamond Proportions?

on August 01, 2021

The cut of a diamond is just as essential as its size and clarity in deciding its price. The proportions of a diamond, i.e. the ratio and size of the depth, breadth, and table of the diamond, define the cut of the diamond. The beauty of a diamond is largely determined by its dimensions, which are also critical to its brightness and worth.


The diamond is better able to absorb and reflect light with optimal diamond proportions, resulting in brightness and fire. Light will be lost from the sides of the diamond if it is cut too shallow or too deep, and it will not reflect correctly. In other words, if the diamond's proportions are off, the diamond will appear dull and lifeless.


Each component of the diamond has its own cut ratio and angle, such as the table, complete depth, girdle thickness, facet length, and culet. Each portion of the diamond has a range of values that are determined mathematically, so you can comprehend the different parts of the diamond by looking at the images below.


Diamond Table

The size of a diamond table has a direct influence on the diamond's reflectivity, or lustre. The table size is represented as a percentage of the total table size (the ratio of the width of the table to the average diameter of the diamond). The EX corresponds to a table width ratio of 50-66 percent. A table that is too wide produces more lustre but less fire, while a table that is too tiny produces more fire but less lustre. As a result, the table width ratio cannot be too large or too small.


Diamond Depth

The full depth refers to the vertical distance between the table face and the bottom tip of a round brilliant cut diamond, and the full depth ratio refers to the ratio of this distance to the diamond's diameter.


Diamond Crown

The crown of a diamond is the trapezoidal portion above the girdle that disperses light entering the diamond. When light penetrates a diamond, it illuminates it and gives it the appearance of a multicolored flame. Crown-to- The vertical distance between the girdle face and the table represented as a percentage of the average girdle diameter. A crown height ratio of 11 to 16 percent for a typical round diamond is ideal.


Diamond Girdle

The girdle is a tiny region surrounding the diamond's outermost edge with the greatest diameter that protects it. A laser code on the diamond girdle relates to the diamond certificate and is the most efficient means of identifying a loose diamond. Thin, Thin to Medium, Thin to Slightly Thick, Medium, Medium to Slightly Thick, Medium, Medium to Slightly Thick, and Slightly Thick are the finest girdle thicknesses. are exceptional.


Diamond Culet

Many people have heard of a diamond with 57 facets and one with 58 facets, but they don't understand why there is such a little variation in facets or where the small facets are located. The culet, in reality, has the 58th facet. If the diamond's facets lie parallel to one other, the diamond will appear to be made of glass.


SHAN is here to assist you in selecting the finest proportioned diamonds for the most dazzling jewelry, so please visit our website to learn more!