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Diamond Cut

Diamond cut refers to the precise proportions, symmetry, and polish of a diamond. Among the 4Cs, diamond cut holds the utmost significance as it directly influences the diamond's brilliance, fire, and sparkle. Furthermore, it plays a pivotal role in determining the diamond's overall appearance and value.


A diamond's cut quality dictates how effectively it interacts with light, although attributes like color and clarity also contribute to its visual appeal.


It's crucial to distinguish between diamond cut and shape, as they are distinct concepts often conflated. While shape refers to the outline or silhouette of the diamond, cut encompasses the craftsmanship and precision of its facets and facets' arrangement. If you're interested in exploring diamond shapes further, click here.

Diamond Cut Chart

diamond cut chart

Several factors influence a diamond's appeal, with its ability to reflect light being the most crucial.

diamond cut Reflection

Ideal-cut Diamonds : Ideal-cut diamonds are revered for their exceptional brilliance and fire. This cut style is meticulously crafted to precise proportions and angles, optimizing the diamond's ability to reflect and refract light. The result is a stunning display of brightness, sparkle, and dispersion of spectral colors. Ideal-cut diamonds are highly sought after for their superior beauty and are often considered the standard of excellence in diamond cutting.


Shallow-cut Diamonds : Diamonds with shallow cuts are characterized by their lower depth proportions compared to other cuts. While this may allow more light to escape through the sides of the diamond, it can sometimes result in less brilliance and fire. However, shallow-cut diamonds often appear larger for their carat weight, making them a popular choice for those seeking a larger-looking stone within their budget. These diamonds can be an excellent option for individuals prioritizing size over maximum sparkle.


Deep-cut Diamonds : Diamonds with deep cuts are characterized by their greater depth proportions compared to other cuts. While a deeper cut can enhance the diamond's color and provide a unique play of light, it may also result in less brilliance and a smaller-looking appearance. Deep-cut diamonds require careful consideration, as they can vary significantly in their visual appeal depending on factors such as proportions and the quality of the diamond's facets.

Diamond Cut Anatomy

diamond cut anatomy

Table:

The table is the largest and most prominent facet of the diamond, located at the top. It serves as the entry point for light into the diamond and plays a significant role in determining the stone's overall visual appeal. The size and proportions of the table impact how effectively light is reflected and dispersed within the diamond.

Crown:

The crown refers to the upper portion of the diamond, extending from the girdle to the table. It consists of a series of smaller facets, including bezel facets, star facets, and upper girdle facets. These facets are responsible for refracting and reflecting light, contributing to the diamond's brightness and fire.

Girdle:

The girdle is the narrow band that encircles the widest part of the diamond, separating the crown from the pavilion. It serves as the diamond's perimeter and can vary in thickness, ranging from thin to thick. The girdle's thickness affects the diamond's durability, appearance, and overall proportions.

Pavilion:

The pavilion is the lower portion of the diamond, extending from the girdle to the culet. Like the crown, the pavilion comprises a series of facets, including lower girdle facets and pavilion main facets. These facets are responsible for reflecting light back through the table, enhancing the diamond's sparkle and visual appeal.

Culet:

The culet is a small facet or point located at the bottom of the diamond. In modern diamond cutting, the culet is often very small or even absent altogether. However, older diamond cuts may feature a larger culet. The size and presence of the culet can affect the diamond's appearance and perceived clarity.

Depth:

The depth of a diamond refers to the distance from the table to the culet. It is a crucial factor in determining the diamond's overall proportions and visual appeal. Diamonds with shallow or deep depths may exhibit different levels of brightness and fire.

Facets:

Facets are flat, polished surfaces that make up the crown and pavilion of the diamond. These facets act as mirrors, reflecting and refracting light to create the diamond's sparkle. The number, size, and arrangement of facets can vary depending on the diamond's cut and shape.

Symmetry:

Symmetry refers to the precise alignment and balance of the diamond's facets and proportions. A well-cut diamond exhibits symmetrical proportions, with facets that are evenly distributed and aligned. Symmetry is essential for maximizing the diamond's visual appeal.

Proportions:

Proportions refer to the relative sizes and angles of the diamond's various components, including the table, crown height, pavilion depth, and girdle thickness. Well-balanced proportions are essential for optimizing light performance and visual appeal. Diamonds with ideal proportions often exhibit superior brightness and fire.