Baguette Diamond ring in Yellow Gold

The Ultimate Guide to Diamond Clarity and Colour: Everything You Need to Know

The Ultimate Guide to Diamond Clarity and Colour: Everything You Need to Know

When selecting a diamond, clarity and colour are two of the most important factors that determine its beauty and value. Whether you're purchasing a diamond for an engagement ring or simply looking to add a stunning piece to your jewellery collection, understanding these key aspects will help you make an informed decision. In this guide, we’ll break down everything you need to know about diamond clarity and colour, along with carat and cut—the other two essential Cs—so you can choose the perfect stone with confidence.

Understanding the 4 Cs of Diamonds

When it comes to diamonds, there are four key factors to consider, commonly known as the 4 Cs of diamonds: Cut, Clarity, Carat, and Colour. Understanding these grading factors will help you make an informed choice when diamond shopping.


1. Diamond Cut: The Shape and Brilliance

The cut of a diamond refers to how well it has been shaped and faceted. Uncut diamonds often appear dull, but a well-cut stone reflects light beautifully, enhancing its sparkle. A round brilliant cut is one of the most popular shapes, but diamonds can also come in princess, cushion, oval, and emerald cuts.


2. Diamond Clarity: Flawless or Included?

Natural diamonds are formed under extreme heat and pressure, which often results in tiny imperfections, called inclusions. Diamond clarity is graded based on the number and visibility of these inclusions. Flawless diamonds are extremely rare, while slightly included diamonds can still be beautiful and cost-effective. Trust your instincts when choosing clarity – if it looks perfect to you, that’s what matters most.


3. Diamond Carat: Weight and Size

Diamond carat refers to the weight of the stone. One carat equals 0.2 grams. While heavier diamonds have a higher carat value, they aren’t necessarily of better quality. The brilliance of a diamond depends on how well it is cut, so balance carat size with cut and clarity when selecting the perfect diamond.


4. Diamond Colour: Grading from D to Z

Diamonds are graded on a colour scale from D (completely colourless) to Z (noticeable colour). Colourless diamonds are the most valuable, but diamonds can also come in beautiful shades like pink, blue, yellow, and even champagne. Coloured diamonds are perfect if you want a unique and vibrant piece of jewellery.


How to Choose the Perfect Diamond

Choosing the perfect diamond is a personal experience. While it’s helpful to understand how diamonds are graded by the 4 Cs, the most important factor is how the diamond makes you feel. Trust your instincts and select the one that resonates with you the most.

For more information, explore our diamond jewellery collection or speak to one of our diamond experts to help you find the perfect piece.