Diving Deeper into the 4Cs of a Diamond: Colour

GXT World
3 min readOct 25, 2021

25 Oct 2021 | 8 min read

In this series of Diving Deeper into the 4Cs of a Diamond, we will be looking at perhaps the second most important aspect of a diamond, which is its Colour. What exactly is the colour of a diamond and why is it so important? Do different diamonds have different colours? What do you need to look out for? Let’s find out below.

What is the Colour of a Diamond / Diamond Colour?

The ‘Colour’ of a diamond refers to the natural tint inside the diamond and it is graded according to how white or colourless the tint is. Diamonds have more varying colours than what most consumers may think or expect. Diamonds can come in a variety of colours such as grey, white, yellow, green, and pink. As a result, diamonds that are completely colourless are exceedingly rare and this rarity makes them very highly priced and valued. The visible colour of a diamond is also affected greatly by the shape of the diamond.

Why is the Diamond Colour So Important?

The diamond colour is the second most important aspect to look out for in diamond as it directly affects the overall appearance of the stone. A beautiful diamond should appear white or colourless to the naked eye. While the diamond colour chart displays an example of each colour grade, it is still vital to inspect each diamond individually. Depending on the cut, carat, and shape of the diamond, the colour might significantly differ from diamond to diamond.

Diamond Colour Grade Chart

The official GIA colour scale that displays the diamond colours is shown as follows:

As stated directly from the GIA website; “The colour evaluation of most gem-quality diamonds is based on the absence of colour. Within the D-to-Z range, when all other value factors are equal, colourless diamonds are the most valuable.”.

What should I Look Out for When Purchasing a Diamond?

When looking to purchase a diamond, it is helpful to look at the colour grade and inspect the diamond personally. A diamond with a poor colour grade might appear slightly yellowish instead of the desired brilliant white or colourless hue. A useful trick when deciding on a diamond colour would be to check how colourless it appears in relation to its background.

The colour grade might also significantly determine the price of the diamond. There can be a huge jump in price between diamonds that are just adjacent to each other on the colour grade scale but with not much visible difference. Additionally, do ensure that the diamond colour does not interfere with its brilliance or sparkle. These tips can help you get the best value for your money and make sure that you do not pay too much for too high of a colour grade that goes unnoticed to the naked eye.

Where Can I Safely Purchase a Diamond Online?

GXT World is an online global diamond distributor that works with various partners worldwide to source for the best diamonds, bringing sparkling diamonds from all over the world directly to our customers. GXT World has many global partners including diamond suppliers in India, Belgium, and the United States, ensuring that the highest quality diamonds are made more accessible to our customers.

We understand that each consumer is looking for their own unique diamond, with some looking for larger ones with less emphasis on the colour, and others looking for smaller, colourless gems. No matter what shape or combination of the 4Cs that our customers are looking for, they are sure to find the diamond that they want on GXT World.

The GXT World platform is user-friendly, with customers easily able to specify the different characteristics of the diamond that they would like to purchase through the search function. GXT World strives to provide consumers with the best value and service to ensure that each customer enjoys both the diamond itself and the purchasing process on our platform.

Do browse through our wide selection of diamonds here or contact our customer service for any enquiries or support.



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