PUBLISHED: January 20, 2023

There is so much more to simply picking a ring with the biggest carat when it comes to shopping for your wedding or engagement ring; it is essential to learn the basic diamond terminology as these characteristics are what determine a diamond's value and beauty – understanding them can help you make an informed decision when purchasing the diamond ring of your dreams! To choose the perfect diamond for your engagement or wedding ring, it is important to consider the 4Cs of diamond grading: cut, carat weight, colour, and clarity.

In this article, let us share more about how the 4Cs can help you in your next diamond jewellery purchase.

1. Cut


The cut of a diamond refers to its finish, proportions, and symmetry. It is the most important factor in determining a diamond's sparkle and overall beauty. A well-cut diamond will have a balanced ratio of depth to table, as well as good symmetry and a polished finish. On the other hand, diamonds cut too shallow or too deep will not have the same level of brilliance and fire as a well-cut diamond.

In the market today, the most popular cuts for a diamond we typically see often are round, princess, cushion, radiant, and oval.

2. Carat


Carat weight refers to the weight of the diamond, with one carat equal to 0.2 grams. A diamond's carat weight can have a significant impact on its price, as larger diamonds are typically more valuable than smaller ones. However, it is vital to note that a diamond's cut, colour, and clarity also play a role in its overall value. As such, it is possible to find a smaller diamond that’s more valuable than a larger one due to its superior cut, colour, and clarity.

3. Colour


Colour refers to the presence of any colour in a diamond, with the best quality diamonds being completely colourless. Diamonds are graded on a scale from D (colourless) to Z (light yellow or brown). The more colourless a diamond, the more valuable it is considered to be. That said, some diamond buyers still prefer a diamond with a subtle hint of colour, such as a yellow or pink diamond.

4. Clarity


Clarity refers to the absence or presence of any blemishes or inclusions in a diamond. Blemishes are external characteristics, while inclusions are natural internal characteristics. The fewer blemishes and inclusions a diamond has, the higher its clarity grade will be.

Diamonds are graded on a scale from Flawless (no inclusions or blemishes visible under 10x magnification) to Included (inclusions and blemishes visible to the naked eye). But while a higher clarity grade can indicate a more valuable diamond, choosing a diamond with the highest possible clarity grade is not always necessary!

How to choose the perfect diamond

While the diamond 4Cs can play a significant role, it is also essential to consider your personal preferences and budget when it comes to choosing the perfect diamond. A well-cut diamond with a good balance of carat weight, colour, and clarity will have the most overall value and beauty. Before committing to a diamond ring, it would be best to view the diamond in person, as a diamond's appearance can be affected by the lighting and setting in which it is viewed.

When choosing a diamond ring, one thing to remember is its certification. It's crucial to verify the authenticity and quality of the diamond by reviewing a certification from a reputable laboratory such as the Gemological Institute of America (GIA), the De Beers Group Institute of Diamonds (IOD), and the International Gemological Institute (IGI). This will provide detailed information about the diamond's characteristics, including cut, carat, colour and clarity grades, giving buyers the confidence and peace of mind that they are making a well-informed decision.



Ultimately, choosing the perfect diamond requires a balance of personal preference and budget, followed by a basic knowledge of the 4Cs. By understanding the 4Cs of diamond grading – cut, carat weight, colour, and clarity – only then can you make an informed decision when purchasing a diamond that’s worthwhile! Moreover, it would be wise to verify the authenticity and quality of the diamond by reviewing a certification from a reputable laboratory before making a purchase.

Now that you have the knowledge to purchase a diamond that’s both beautiful and valuable, why not book an in-store consultation with our friendly jewellers over at Love & Co. to view our extensive range of diamonds or perhaps our stunning wedding jewellery collection in Singapore? From lab-grown diamonds to our latest Say Love™ diamond, let our team assist you in finding the proposal ring of your dreams today!