Choosing the Perfect Diamond

Choosing the Perfect Diamond: The 4 Cs Explained

When selecting the ideal diamond for an engagement ring, understanding the 4 Cs—Cut, Clarity, Carat, and Colour—is essential. These factors determine a diamond's quality, appearance, and value. This guide from Diamond Jewellery, your premium jewellery store in Melbourne, will help you navigate these aspects, balancing them to suit your budget and personal preferences.


The cut of a diamond is crucial as it affects the stone's brilliance. A well-cut diamond reflects light beautifully, making it sparkle. Cut is graded from Excellent to Poor. Opting for an Excellent or Very Good cut will ensure maximum brilliance. For those mindful of their budget, a Good cut can still offer considerable sparkle while being more affordable.


Clarity measures the presence of internal or external flaws, known as inclusions and blemishes. Diamonds are graded from Flawless (no inclusions visible under 10x magnification) to Included (inclusions visible to the naked eye). While Flawless and Internally Flawless diamonds are rare and expensive, opting for a diamond with a VS1 or VS2 clarity grade can provide an eye-clean appearance without the higher cost. These diamonds have inclusions that are difficult to see without magnification, offering a balance between quality and price.


Carat refers to the diamond's weight, with one carat equal to 200 milligrams. Larger diamonds are rarer and therefore more expensive. However, a diamond just below a full carat weight (e.g., 0.9 carats) can look similar in size but cost significantly less. If size is a priority, consider a diamond with a slightly lower clarity or colour grade to stay within budget.


Colour grading ranges from D (colourless) to Z (light yellow or brown). Colourless diamonds (D-F) are the most sought after, but diamonds in the near-colourless range (G-J) offer excellent value. In most settings, especially those made of white gold or platinum, near-colourless diamonds appear colourless to the untrained eye. Opting for a diamond in the G-J range can free up budget for a larger carat weight or a better cut.

Balancing the 4 Cs

Balancing these four factors depends on personal preference and budget. Here are some tips:

  • Prioritise Cut: A well-cut diamond maximises brilliance, even if the clarity, carat, or colour isn't top-tier.
  • Consider Carat and Size: If size is important, you might opt for a slightly lower clarity or colour grade to afford a larger diamond.
  • Clarity and Colour Compromise: For most people, VS1 or VS2 clarity and G-J colour offer the best balance between appearance and cost.
  • Explore Lab Grown Diamonds: These diamonds are chemically identical to natural diamonds but are more affordable. Lab grown diamonds allow you to get a higher quality diamond for your budget.

At Diamond Jeweller, a premier jewellery store in Melbourne, we understand the significance of finding the perfect diamond engagement ring. Whether you're looking for traditional or lab grown diamonds, our collection caters to diverse tastes and budgets. Visit us to explore our range and receive expert guidance on choosing the diamond that best suits your needs.

Choosing the perfect diamond is an exciting journey. By understanding the 4 Cs and how to balance them, you can make an informed decision that will bring joy for a lifetime. For the finest diamond engagement rings in Melbourne, Diamond Jeweller is here with you. We’re here to help you find a ring that symbolises your unique love story. We offer a premium range of jewelleries including diamond engagement rings, lab grown diamonds rings, wedding rings, men's rings, pendants, earrings  across all Melbourne suburbs including Toorak, Richmond, South Yarra, Prahran, Windsor, Armadale, Malvern, CamberwellGlen Iris, Hawthorn and more.

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