The 4Cs of Diamonds

Diamonds are graded based on the 4Cs – Cut, Colour, Clarity, and Carat Weight. These factors determine a diamond’s beauty, brilliance, and value.

• Cut – The most important factor, as it affects how well the diamond reflects light. A well-cut diamond will have superior sparkle, regardless of size.

• Colour – Diamonds range from completely colourless (D grade) to light yellow or brown (Z grade). The less colour, the rarer and more valuable the stone.

• Clarity – Natural inclusions and blemishes are common in diamonds. The clarity scale ranges from Flawless (FL) to Included (I1–I3), with fewer inclusions meaning higher clarity and value.

• Carat Weight – This measures a diamond’s size, with one carat equal to 0.2 grams. While larger diamonds are rarer, a high-quality smaller stone can often be more desirable than a lower-quality larger one.

Diamond Shapes & Styles

Beyond the 4Cs, diamonds come in a variety of shapes, each with its own unique appeal. From the classic Round Brilliant Cut to the elegant Oval, Pear, Princess, Emerald, and Cushion Cuts, your choice of shape will reflect your personal style and preferences.

Ethically Sourced & Certified Diamonds

We take pride in offering ethically sourced, conflict-free diamonds, ensuring every stone meets the highest standards of sustainability and responsible sourcing. Each diamond comes with a certification from a recognised gemological institute, such as GIA or IGI, guaranteeing authenticity and quality.

Let us help you find a diamond that captures your story. Visit Robert’s Fine Jewellery to explore our exquisite collection or speak to our experts for personalised guidance.