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Buying a Diamond – Know the 4Cs

The 4Cs are the four facets of diamond quality. These elements are Carat weight, Color, Cut, and Clarity. Before the 4C system, diamonds were described as A, B, or C quality. Sometimes they were also called AAA, AA, or A. The system has been around for over 50 years, and allows buyers and jewelers to communicate on the same language. If you’re considering buying a diamond, know that there are many different grades to choose from.

Carat weight

The physical weight of diamonds is measured in carats. One carat weighs approximately one-half gram and is divided into 100 points. A carat is the most objective of the four Cs. American Gem Society (AGS) certified jewelers are qualified to grade diamonds according to carat weight. Carats are not always the same as points, so the chart below will help you understand the difference.

A diamond’s cut, color, clarity, and carat weight are all considered when determining its quality. Each of these factors contributes to the overall appearance of the diamond, which will ultimately determine its price. Understanding each of these four characteristics can help you choose the perfect diamond for your needs and budget. In addition to the 4Cs, there are several other factors to consider when purchasing a diamond. To help you decide which one to buy, the diamond expert recommends that you check its carat weight.

GIA grade diamonds

The diamond 4cs cut and clarity are two of the four defining characteristics of its basic beauty. Color is evaluated based on the absence of hue in the stone. In other words, the colorless diamonds are the most desirable and rarest. The GIA grade diamonds from D (the most colorless) to Z (a stone with a noticeable brown or yellow tint). Below is a color chart, showing each letter’s value next to another. As color grading varies from diamond to diamond, the shape and cut of the stone also play a part in its appearance.

The GIA developed a system of grading diamonds based on the four Cs, including color, clarity, cut, and carat weight. The regulations help jewelers define diamonds, price them, and provide consumer information on the value of diamonds. By learning about the 4Cs, you’ll be better prepared to make an informed decision when purchasing a diamond. And while you may not be able to see the difference between a poor quality diamond that contains many inclusions and a top-notch diamond that is brimming with brilliance, you’ll be glad you did.

Polish of the diamond

If you are planning to buy a diamond, you need to know the four Cs of diamond cut. A GIA diamond grading report is a scientific and unbiased blueprint for diamond quality. This report explains the four Cs, as well as the cut and polish of the diamond. It also includes diagrams highlighting the characteristics of the diamond, including its cut, color, and clarity. It also explains how to grade a diamond.

The cut of a diamond is the physical shape of the stone and determines its sparkle. Cut is also referred to as the proportion of facets and angles within the diamond. A good cut will allow light to pass through the diamond and boost the other 3 Cs, which are symmetry, brilliance, and color. When selecting a diamond, remember that diamonds can be varying shapes and sizes, and the cut will greatly impact the price of the stone.

External characteristics

A diamond’s clarity grade is determined by the number of internal and external characteristics, or inclusions. Diamonds with many inclusions are graded lower than those with few or no inclusions. Inclusions are more visible if they are located on the girdle or under the table facets, but they are less visible when they are located underneath the crown facets. This means that if a diamond has many feathers in its clarity, it is likely to be a lower grade than a colorless diamond.


Fortunately, the diamond clarity grading system based on the Gemological Institute of America (GIA) Clarity Grading Scale is widely accepted. The GIA Clarity Grading Scale consists of 11 grades, each of which expresses the relative visibility of inclusions under 10X magnification. For example, an IF diamond exhibits minor inclusions under 10X magnification. A VVS1 diamond, on the other hand, has a few inclusions visible under ten times magnification.

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