The 4 C’s Of Diamond Quality: What You Should Know

Every single diamond is different from any other one, unique in its own way. For this reason, diamonds are also not priced similarly. For instance, search for a one carat diamond on the internet and you’ll be presented with thousands of results – and each of the diamonds you find will have a different price tag attached to it. The reason for this is because diamonds are graded based upon specific qualities, but these qualities tend to defer from one diamond to another diamond. In this guide, we would like to discuss the main qualities that are considered to be the most important when it comes to examining and grading a diamond in question. These are the four qualities that appraisers primarily considers when they determine the quality of a diamond and how valuable that particular diamond is. The qualities are often called the “Four C’s” and refers to four different elements that do not only affect a diamond’s price, but also its beauty and sparkle.

Diamond 4 C's

Guide: The 4 c’s of diamonds

The four C’s that are looked at when a diamond is graded are the most important properties that affect how the diamond looks, and how much the jeweler can ask the consumer for the diamond when it is being sold. These four qualities include the carat, color, cut and clarity grades of a particular raw diamond stone. Each affects a diamond in a different way, so it is important that we look at each of these properties individually to better understand what they mean and the different grades that a diamond can be awarded.

Diamonds Carat Weight

The carat weight of a diamond has the most significant effect on how much it cost. A higher carat weight also means the diamond is larger, and, of course, more impressive. This is the first aspect that is considered by the appraiser. The diamond is placed on a scale and then weighed. For each 200 milligrams of weight, the diamond gains one carat in weight. When it comes to shopping for diamonds based on their carat weight, it is important to consider that certain weights, such as one carat, causes a significant rise in price; thus opting for a 0.9 carat weight diamond, which is similar in size, can cost a lot less.

Diamond Color Rating

The diamond’s color plays a large part in how it looks and how much it costs. A colorless diamond is graded based on the absence of color in the stone. The less color present, the higher the value. A fancy color diamond, however, is graded based on the presence of color and the intensity of the color present in the stone.

Diamond Cut Grade

A diamond’s cut quality does not only affect its price, but also has a considerable effect on the visual appearance of the particular diamond. A good quality will result in a beautiful sparkle, but a poor cut quality will cause the light to escape from the diamond at the wrong points, which causes an unnatural look, especially when the diamond is placed under a light.

Diamond Clarity Scale

Finally, the clarity of a diamond is also considered a very important quality. Clarity refers to the absence (or presence) of inclusions that can be observed either through a magnifier or with the naked eye. The more inclusions present in the diamond, the more its price will be discounted.


The four C’s of diamonds refer to the most important qualities that affect how a diamond looks, especially when placed under light, and how much a diamond will cost a consumer. The higher the qualities, the more the diamond will cost. Knowing how each particular quality affects a diamond can help you make a better decision when choosing a diamond, especially if you are on a tighter budget and need to sacrifice certain quality grades without losing the diamond’s natural beauty.

Mary Turner


With experience dating back to when brick and mortar was the ONLY source for shopping for diamonds, I have countless men find the perfect diamond for that special occasion. As your Personal Diamond Consultant, I'm here to make sure you end up with the perfect stone.