Sign Up FOR 35% OFF
Use Code: DAD

The 4Cs Theory

We believe that every woman deserves to feel the beauty and timelessness of a finely cut diamond. So, we made it our mission to “democratize diamonds,” and beyond that, to make luxury jewelry crafted with care, passion, and precision available to everyone.  But In the process of designing the perfect diamond, it’s necessary to pass many steps that have been previously studied.

In the 1940s, a research institute specializing in jewelry art and gemology named GIA determined a technique to qualify and quantify the quality of diamonds. The reason is as simple as each diamond is different when collected and you have to know what is valuable and what is not. Robert M. Shipley, one of the scientists, found what can be considered today as a revolution in this field, he called them The 4Cs. So what are the 4Cs?

Let’s start with the C for CARAT.

We all know what a carat is, but let me give you more details.

The carat is the weight of the diamond. Calculated in cts, it is often described in milligrams (a metric that everyone knows). We tend to think that the carat is the most important factor when buying a diamond. However, the diamond can be heavy but of poor quality. That's why you have to look at the other parameters. This means that the carat is not the only one responsible for the price of the diamond.

In this quality research technique, GIA finds the COLOR.

And they decided to create a grid to determine the color : The GIA D-t-Z color scale. It’s more the absence of color than a real color. The D corresponds to the total leak of color, the fact that the diamond is colorless and the Z to a yellow/brown color. The closer the diamond is to the Z, the more impurities it will have. In fact, the more colored it is, the more gas atoms it contains. So the more colorless it is, the more expensive it will be.

Then we have the CLARITY.

The clarity of a diamond is the purity of this one. In the same principle as the colors, the purity of a diamond is registered in a grid established by GIA. As a reminder, diamonds are the result of carbon heated and extracted naturally by the earth. To define the purity of the diamond, it must be examined with a x10 magnification for traces of impurities formed by the carbon, which is called "inclusion". The absence of “inclusion” explains the purity of the diamond, which is represented by the VVS, and in contrast the I represents the perception of these imperfections.

Finally, one of the most important parameters is the CUT.

It is necessary to pay attention to how it is cut, polished and how the finish is in order to know its reflection with the light. The perfectly cut diamond reflects these 3 characteristics described by the GIA :

  • “Brightness: Internal and external white light reflected from a diamond
  • Fire: The scattering of white light into all the colors of the rainbow
  • Scintillation: The amount of sparkle a diamond produces, and the pattern of light and dark areas caused by reflections within the diamond”

It’s the C that most represents the beauty of the diamond, so the price and the quality.

At Magal, we can offer you to choose the carat of your diamond on various jewels between 0.10 CT, 0.20 CT, 0.30 CT, 0.50 CT. The "Solitaire" collection is one of them, we have necklaces, earrings and bracelets. The advantage of this collection is that the cut is also taken into consideration since many shapes of diamonds exist. To let you know, this collection is made with a H/I diamond color so according to GIA near colorless and a clarity is Si1/Si2. If you want a product with a higher clarity, our String of Love collection is made with a very high quality Vs2-Si1 diamond.

A good mix of the 4Cs matches the brand's newest product. The "Twine Diamond Necklace" offers 3 different carats depending on your desire, has a classical cut, is of high quality (Vs2-Si1) and a color close to H.

Chona Szermanski
Published on December 12, 2022


Sign-up to become part of the Magal family and receive ultimate access to special offers, free giveaways, and once-in-a-lifetime deals.


Radically Transparent

14K Premium Recycled Gold

Ethically Sourced Diamonds

1 Order Placed / 1 Tree Planted


Immediately get a 35% discount on your first online purchase for you. New collections, promotions, and exclusive specials are just a click away! Only for you, only with our newsletter.