Introductions to Buying Diamond Jewellery

Posted by Matthew Cohen on

The 4 C’s: Colour, Clarity, Cut, and Carat

Bling, Ice, a Girl’s Best Friend; Whatever you call them, diamonds reign supreme in the jewellery industry. 

Most natural diamonds have been buried in the earth for billions of years, forming in depths of 150km (and below) which adds to their aura of luxury. Diamonds come in a variety of shapes, sizes, and colours, which really begs the question, what makes a diamond “good”.

4cs of diamonds

Jewellers determine the quality of a diamond based on the Colour, Clarity, Cut, and Carat.

#1 Colour: 

     The Colour evaluation of a diamond in fact refers to the opposite: being its “lack” of colour. The gem is ranked between D (most expensive) and Z (least expensive); D being most clear and Z being the brightest yellow.

The less colour a diamond has, the purer the jewel, placing the most ideal diamonds for purchase between categories D to H.

what diamond colour is best value

#2 Clarity: 

     The Clarity of a diamond refers to its imperfections, which are called inclusions. The most common of these are cloudiness, scratches and pieces of black carbon found inside the jewel.

Diamonds are ranked flawless (FL), internally flawless (IF), very slightly included (VSI), slightly included (SI), and finally included (I).

When making a purchase, everything SI or better is considered good.

#3 Cut: 

   The Cut of a diamond is exactly what it sounds like: it’s the way the diamond is… well, cut. This influences the gem’s overall shine.

The most popular cut is called round brilliant, which gives the jewel the most glimmer.

While looking for the perfect cut, seek a circular shape and avoid jewels which are too deep or too shallow as they won’t sparkle quite as much.

what colour should a diamond be

#4 Carat:

     For diamonds, Carat is based on the weight of the gem. Their weight is scaled on a point system, which is best explained through example: the average 3mm diamond is referred to as a 10 pointer because it weights one tenth (1/10) of a carat. So, a piece of jewelry with 10 ten pointers is a one carat piece (one carat of ten pointers).

Now, the important thing to remember is that different cuts result in different weights, meaning that each carat will be different depending on its shape. 

Diamond carat chart

Looking for a diamond engagement ring? 

We hope you found this article helpful in your journey towards finding the perfect diamond.

Looking for a diamond engagement ring that will wow her? Check out Misc. Jewellery's large collection of diamond halo rings, solitaire engagement rings, wedding bands, and more! Shop here

Info credit: 

← Older Post


  • Best wedding jewellery

    vishal sharma on
  • Daizy Jewellery
    I always spent my half an hour to read this webpage’s
    posts everyday along with a cup of coffee.
    Daizy Jewellery
    Daizy Jewellery: The Best Jewelry Shop in the USA

    Daizy Jewellery on
  • Daizy Jewellery
    I always spent my half an hour to read this webpage’s
    posts everyday along with a cup of coffee.
    Daizy Jewellery

    Daizy Jewellery: The Best Jewelry Shop in the USA

    Daizy Jewellery on
  • An informative read! Buying diamond jewellery is an investment in both style and sentiment. Understanding the basics is essential for making an informed decision. Ready to dive into the world of exquisite diamond pieces? Explore the stunning wedding rings ( collection at Men’s Rings Australia for timeless elegance and unparalleled craftsmanship.

    Wedding Rings Australia on
  • Unlock diamond perfection with the 4 C’s! Dive into the brilliance of color, clarity, cut, and carat at Misc. Jewelry for the ultimate symbol of love. Visit:

    Shafaq Habib House Of Jewelry on
  • Thanks for sharing

    Hands2home on
  • Thanks for sharing this blog

    Dishis Designer Jewellery on
  • This jewelry store offers a wide variety of options, from classic pieces to modern and custom designs The elegant and welcoming atmosphere invites you to explore the brilliant window displays carefully adorned with high quality Sterling, Pearls and precious stones Trained staff guide clients through the selection.

    Jade Saer Jewelry – JADE SAER on
  • Compromise Carefully. It’s no secret that diamonds are expensive. Despite this, first-time buyers often find diamonds are pricier than they initially ..

  • Hey thanks for sharing this post! I found it insightful. To learn more click here –

    Aisha Malik on

Leave a comment