The 4C's

4 C’s of Diamonds Guide

This guide explores the characteristics that determine a diamond’s quality grade according to the industry standards in cord bracelets, rings, earrings,....

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4 C’s of Diamonds Charts

Created by the Gemological Institute of America (GIA) in the 1940s, the 4 C's — cut, color, clarity, and carat — serve as the universal standard for assessing diamond quality. Each C represents a distinct quality attribute, measured on its own scale:

Cut: Graded from Excellent to Poor on the GIA scale and Ideal to Poor on the International Gemological Institute (IGI) scale
Color: Graded from D (colorless) to Z (light yellow or brown)
Clarity: Graded from Flawless (FL) to Included (I3)
Carat: Measured in metric carats, where one carat equals 200 milligrams

Choosing An Ideal Diamond

There are various characteristics and factors to consider when choosing the perfect diamond for your forever ring. Our Signature Range of lab grown diamonds are exquisite and hand selected. We choose to work with only the most superb cultured diamonds, that deliver on our commitment of quality, ethicality and affordability. Our lab diamonds are IGI and GIA certified diamonds and are D - F Colour, VS2-VVS1+ Clarity and Excellent Cut, Polish and Symmetry. We pride ourselves on transparency and empowering you with accurate education to choose the right diamonds.

What is a Lab Diamond?

A lab diamond is arealdiamond that is produced in a controlled laboratory environment. Laboratory grown diamonds possess identical chemical, physical and optical properties to that of mined diamonds.

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Diamond Shape

One of the first important decisions is diamond shape. Diamond shape refers to the external geometric appearance. Diamonds are cut in various shapes including the beloved round brilliant cut, however also ‘fancy shapes’ including oval cut, emerald cut, radiant cut, pear cut and more. Each boasts beautiful and unique properties.

The 4C's

The 4C’s is a term coined by the Gemological Institute of America - GIA, and has become the leading criteria to grading all diamonds.

Cut

Arguably the most important of the four C’s, cut refers not to the shape of a diamond, but the balance of proportion, symmetry, and polish. The quality of workmanship directly correlates with the beauty of the stone, as the cut determines the brilliance, fire and ultimately, the sparkle.

Our round brilliant diamonds are all excellent cut. For fancy shape diamonds, the grade of the cut is determined by the polish and symmetry of the stone. We only work with fancy diamonds that possess excellent polish and symmetry to ensure we are simply offering the best.

Carat

Arguably the most important of the four C’s, cut refers not to the shape of a diamond, but the balance of proportion, symmetry, and polish. The quality of workmanship directly correlates with the beauty of the stone, as the cut determines the brilliance, fire and ultimately, the sparkle.

Our round brilliant diamonds are all excellent cut. For fancy shape diamonds, the grade of the cut is determined by the polish and symmetry of the stone. We only work with fancy diamonds that possess excellent polish and symmetry to ensure we are simply offering the best.

Clarity

Clarity refers to the inclusions found in a diamond. These can occur during the creation of cultured diamonds when exposed to metal traces utilised during the HPHT growth process or mineral inclusions from the CVD growth method.

Our lab diamonds range between the VS2-VVS1+ clarity range. We strive to only work with the most exquisite diamonds that deliver on our commitment of balancing quality and affordability.

Colour

Colour refers to a diamonds natural colour, not the coloured flashes of light the diamond emits when it moves, known as fire. Colour is graded alphabetically from D (Colourless) to Z (Light Yellow).

At NOVACARATS, we work with D - F coloured laboratory diamonds, ensuring the brightest and best quality stones.

Create a Bespoke Ring

Every jewelry piece is carefully handcrafted with attention to detail, quality, and artistry. From selecting premium materials to the final finishing touches, our skilled craftsmen ensure each design reflects elegance, durability, and exceptional workmanship. We focus on creating meaningful pieces that are made to be cherished for years to come.

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