Diamonds | The 4 C's

Image of a diamond


Brinks Jewellers Diamond Cut ImageA good cut enables a diamond to make the best use of light. A round brilliant cut diamond has 58 facets, which are small flat polished surfaces cut into a diamond. When a diamond is in proper proportion light is reflected from one facet to another and then dispersed through the table facet. When diamonds are cut too deep or shallow light is allowed to escape.

Diamond Cut Image

Diamond Cut Tool Image

Diamond Colour Image


A diamond is the only stone in which the absence of colour makes the stone more valuable. A colourless diamond acts as a prism to form a rainbow of colours, commonly called “fire”. The scale below shows a range from colourless to a degree of a yellow tint. Visible differences between one grade of colour and the next grade are very subtle.



Most diamonds contain inclusions which are natural birthmarks and considered as natures fingerprints. A diamonds clarity is graded under 10 times magnification by a trained eye, taking into account the number, size, type and location of the inclusions. The fewer inclusions in a diamond the more valuable it becomes.

Diamond Clarity Image


Diamond Carat Diagram


Diamonds can be found in all shapes and sizes. The size of a diamond is determined by its weight in carats. A carat is divided into 100 points, so a diamond of 75 points is 0.75ct or three quarters of a carat. Larger diamonds are more rare, and command a higher price. While size is an obvious factor in determining its value of a diamond, bigger is not necessarily better, all 4C’s should be considered.

Diamond Carat Scale