The 4 C’s of Diamond Grading and How it Impacts Cost

 Without pressure, there would be no diamonds, but you shouldn't be feeling under pressure when shopping for a diamond. When it comes to grading and purchasing any diamond or diamond jewelry, it is crucial to know the 4 C's of diamond grading and how the grading of each one affects the cost. The 4 C's are Carat, Cut, Clarity, and Color.

The 4 C's are a quick, easy-to-remember guide that you can follow when making any diamond jewelry purchase. Each diamond is precious and rare in its own unique light, even with tiny flaws and slight imperfections. It doesn't change that diamonds are really everyone's best friend.

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The 4 C's of Diamond Grading


When referring to diamonds and gold, the term carat is probably the most well-known of the Cs. Carat specifically refers to the diamond's actual weight and not as much in its size. Carat isn't truly as much about how big the stone is, though we all know how much we all want that "stunner" to show around town. 

The gem's total weight determines the carat of a diamond, and carat price can also be affected by the availability of the type of crystal. When the diamond is cut, rarity, color, and clarity also play a significant role in finding its carat value. 

Related: The Average Size Carat Size for an Engagement Ring


No single diamond is precisely the same, and no one cut of a diamond is perfect for every person. A diamond's cut might be the most important 'C' of all. A diamond's cut is in reference to how well-proportioned its surface is. The angles and dimensions work together to create a brilliant sparkle and shine. 

If a diamond is cut too deep or not enough, this can affect the gemstone's appearance and clarity. The Round Brilliant Diamond Cut is the most popularly purchased cut of diamonds, and this style has over 50 perfectly executed facets that shine and reflect brilliantly in the light. The cleaner and brighter the cut of a diamond, the more valuable it becomes. 

Related: The Differences Between a Round Brilliant Cut and The Old European Cut


The clarity in a diamond is the least significant of all the C's sometimes, and this is only because tiny flaws and imperfections may not even be visible by the naked eye. Diamond clarity involves the assessment of imperfections by a 10x microscope on the stone's surface and inside its core. These minimal imperfections are referred to as "blemishes ."At Least two professionals will then examine the diamond thoroughly under magnification, identifying clarity or if it has had any previous treatments such as laser drilling or filled fractures. 


Your color creates a background for your diamond, almost working harmoniously with the light. The difference in color grades can impact how a diamond looks and its cost. Color masters grade each diamond in a typical viewing environment. Each Independently evaluated, a minimum of two experts will identify the diamond's unique color and finish. 

A chemically pure and structurally perfect diamond would look absolutely transparent to the human eye. In reality, almost all diamonds are not completely flawless in color in one way or another. 

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 A ring with a diamond.

Cost and how to get the best value for your money

When choosing a carat size, always go for the maximum amount of bling for your buck. First, it is quintessential to understand the 4 C's of diamond grading. Knowing color and clarity are hardly noticeable without being magnified now that we can save some money. VS2 clarity or H color diamonds are a perfect pick, plus they are visually pleasing diamonds at a reasonable middle-of-the-road price range.

It's really all about the price leveling up with the diamonds' own quality and beauty. The industry prices are constantly fluctuating based on quality (the 4 C's), certification fees, and where you purchase your jewelry. An average-sized diamond is around 1 carat. Furthermore, a diamond in this range can cost anywhere between 2,000 to 25,000 depending upon the cut

A general price list is available that is sort of a short guide for pricing diamonds around the world. Each month, the Rapaport Research Report reviews the global diamond market, and this report includes pricing information. They also help report inventory data back to the consumers and use transactional data to aid in tracking diamond availability.

Diamonds that are very similar in carat also might vary in expense depending on packaging options, brand, and what the label says. Online shopping for diamonds can save you up to 40 percent compared to shopping in-store. 

Let's imagine you are trying to decide between two diamonds that share similar color, clarity, and cut. Both of them are around the same size. You would want to make sure you are getting the best quality you can for the carat because diamonds are priced per carat. Here's a quick tip on how to figure out pricing based on whatever the current market is per carat. 

  • A 0.82-carat diamond that would cost five grand breaks down to the per-carat price would work out to $5,853 ($4,800/0.82)
  • Let's say you are looking at a 1.55 ct H color SI1 clarity diamond. The "RAP PRICE" would be around $7,600 per carat.

Don't overpay for your diamonds, no matter how pretty they are! Don't be afraid to explore the market research data. Feel free to shop around even though it's probably worth it no matter which diamond you decide because it truly is a timeless gemstone that shares a crystalline shine with no other natural stone in it the world. 

 A diamond in front of a magnifying glass.


Beautiful varieties of natural stones have been thought to hold healing powers. The diamond has been a symbol of good health, wealth, love, and purity for centuries. You can beautifully pair it with other natural stones, and its jewelry potential has no limit. 

By following the four C's rule of diamond grading, you can easily find a diamond that was meant to be your best friend without it breaking the bank!

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