April 2023


Diamonds are renowned for their exquisite beauty and unparalleled brilliance. However, not all diamonds are created equal. The quality of a diamond is determined by a number of factors, including the diamond’s cut, clarity, color, and carat weight. Let us try to understand the science behind diamond quality and the technical aspects of diamond grading.

  • Cut

The cut of a diamond refers to its proportions, symmetry, and polish. The way a diamond is cut can have a significant impact on its overall beauty and value. A well-cut diamond will have superior fire, brilliance, and scintillation, making it appear more vibrant and sparkling.

Diamonds are typically cut into several standard shapes, including round, princess, oval, pear, marquise, cushion, and emerald. The most popular shape is the round brilliant, which has 58 facets that are precisely cut and polished to maximize the diamond’s brilliance.

  • Clarity

Clarity refers to the presence or absence of internal and external imperfections, known as inclusions and blemishes, respectively. The clarity of a diamond is graded on a scale from Flawless (FL) to Included (I3).

The clarity of a diamond is determined using a 10x magnification loupe and other specialized equipment. The number, size, and location of inclusions and blemishes are considered when grading a diamond’s clarity.

  • Color

Diamonds come in a range of colors, from colorless to fancy colors such as pink, blue, and yellow. The color of a diamond is graded on a scale from D (colorless) to Z (light yellow or brown).

Colorless diamonds are the most valued, as they allow the diamond’s natural brilliance and fire to shine through. Its color is determined by comparing it to a set of master stones under controlled lighting conditions.

  • Carat Weight

A diamond’s carat weight refers to its weight in metric carats. One carat is equivalent to 0.2 grams, or about the weight of a paperclip. It is a key factor in determining the diamond’s value, with larger diamonds typically being more valuable than smaller ones.

However, it’s important to note that a diamond’s value is determined by a combination of all the above-listed factors.

The science behind diamond quality is complex and involves both technical knowledge and specialized equipment. Understanding the above-mentioned factors can help you make informed decisions when buying or selling diamonds. 

In this regard, Faith diamond engagement rings are simply pure and of the best quality.