Diamond Guide
Diamond Education
Understanding the 4 C’s of Diamonds
When choosing a diamond engagement ring, you’ll often hear about the 4 C’s. These are the four key factors that determine a diamond’s beauty and value: Carat, Cut, Colour, and Clarity.
Understanding these qualities will help you choose a diamond that perfectly balances brilliance, quality, and value.
Carat
Carat refers to the weight of the diamond. Larger diamonds have higher carat weights, but beauty is not determined by size alone. The right balance of carat and cut ensures exceptional brilliance.
Cut
Cut is the most important factor affecting a diamond’s sparkle. A well-cut diamond reflects light beautifully, creating the brilliance that makes diamonds so captivating.
Colour
Colour measures how colourless a diamond appears. The most valuable diamonds have minimal colour, appearing bright and icy white.
Clarity
Clarity refers to the tiny natural characteristics within a diamond. High clarity diamonds appear clean and brilliant to the naked eye.
Choosing an engagement ring is a meaningful decision, and understanding diamonds can help you make the perfect choice.
Our Diamond Guide brings together helpful articles explaining diamond shapes, carat sizes, engagement ring styles and how to care for your jewellery.
Explore the guides below to learn more about choosing the perfect diamond engagement ring.
Choosing a Diamond
Engagement Ring Guides
- How to Choose the Perfect Engagement Ring
- Engagement Rings Buying Guide
- Best Engagement Rings Under £2000
Diamond Styles
Jewellery Care
IGI Certified Diamonds
Every diamond used in our engagement rings is independently certified by the International Gemological Institute (IGI).
IGI certification verifies the diamond’s cut, colour, clarity, and carat weight, ensuring transparency and confidence in the quality of your diamond.
Your ring will be accompanied by its official IGI certificate.

