Buy certified Diamonds


Have you heard about the 4 C’s of a diamond? It stands for diamond Cut, Colour, Clarity and Carat weight. Below we take a closer look into the individual 4 C’s.


Of all the 4 C’s, diamond Cut has the greatest effect on a diamond’s beauty. In determining the quality of the cut, the diamond grader evaluates the cutter’s skill in the fashioning of the diamond. The more precise the diamond is cut, the more captivating the diamond is to the eye.

Scattered diamonds on a black background. Raw diamonds and mining, a scattering of natural diamond stones. Graphite quartz. Natural stones and minerals. A mountain or a pile of stones. Copy space.


The Colour of gem-quality diamonds occurs in many hues. In the range from colourless to light yellow or light brown. Colourless diamonds are the rarest. Other natural colours (blue, red, pink for example) are known as “fancy,” and their colour grading is different than from white colourless diamonds.


Diamonds can have internal characteristics known as inclusions or external characteristics known as blemishes. Diamonds without inclusions or blemishes are rare; however, most characteristics can only be seen with magnification.

diamond held by tweezers close up. more diamonds out of focus in background.


The Carat is the diamond’s physical weight measured in metric carats. One carat equals 1/5 gram and is subdivided into 100 points. Carat weight is the most objective grade of the 4 C’s.

Man proposed for marriage

The Fifth C:

When you shop smart with an Bryanston Jewellers, you will feel confident in your decision. You know that the jeweller is qualified to describe the characteristics of your diamond, so you can make the informed choice that is right for you.