Next day delivery for all UK orders

Next day delivery for all UK orders

London based jewellery viewings available

We offer payment plans and Klarna

The Diamond 4C's

The Diamond 4C's

When it comes to buying a diamond, there are four essential factors to consider - the 4C’s - cut, colour, clarity, and carat weight. Understanding the 4C’s can help you make an informed decision and ensure that you get the best value for your money.


The cut of a diamond refers to how well it has been cut and polished from its rough form. A well-cut diamond will reflect light internally and display maximum brilliance, fire, and scintillation. The cut determines the diamond’s overall beauty and value.

The diamond cut grading scale ranges from Excellent to Poor. The ideal cut is the most expensive, as it requires the most labour and removes the most rough diamond. A well-cut diamond is more valuable than a larger one with a poor cut.


The colour of a diamond is graded on a scale ranging from D (colourless) to Z (light yellow or brown). The less colour a diamond has, the more valuable it is. However, fancy-coloured diamonds such as pink, blue, or yellow can be highly valuable.


Clarity refers to the presence or absence of inclusions and blemishes on the surface or inside the diamond. A diamond with fewer inclusions and blemishes is more valuable than one with more. The clarity grading scale ranges from Flawless to Included.

Carat Weight

The carat weight of a diamond is the measurement of its weight. One carat is equivalent to 0.2 grams, and the larger the diamond, the rarer and more valuable it is. However, it is important to note that carat weight should not be the only consideration when purchasing a diamond, as a smaller diamond with excellent cut, colour, and clarity can be more valuable than a larger one with a poorer quality.

In conclusion, understanding the 4C’s is vital when purchasing a diamond. A well-cut, colourless, internally flawless, and large diamond will be the most valuable and desirable. However, it is important to balance all four factors according to your budget and personal preference.

Next post