The Chupi Journal

Chupi Lab Grown Diamonds

The 4 C’s of Lab Grown Diamonds

Tuesday, September 8th, 2020

Cultivated lab grown diamonds are more affordable than a traditionally mined diamond and are graded and certified in the exact same way using the four C’s. The four C’s determine the quality of a gemstone by cut, carat, colour and clarity.

These beautiful diamonds are cultivated in a laboratory environment, the perfect modern gemstone for your heirloom. They are molecularly identical and have the same beauty and strength as traditionally mined diamonds, ranking at the top of the internationally recognised Mohs scale for gemstone hardness.

They are visually and molecularly identical to a traditionally mined diamond and are an amazing gemstone if you want the incredible sparkle of a classic diamond, but a more sustainable alternative.

Our lab grown diamonds are certified by the International Gemological Institute.


Be careful not to confuse Cut for Shape. Cut refers to the design of the stone, such as round, oval or pear. A Diamond’s cut is the most important factor in determining its quality in terms of fire and brilliance, making it the most important of the 4 C’s. The cut of a diamond determines how effectively light that enters the stone is refracted within and reflected back through the top of the diamond.


Carat is a measurement of weight, not love. It is simply what the precious stone weighs in metric carats which are a unit of measurement like kilos or pounds. One carat is equivalent to one-fifth of a gram, this metric is the same for both lab grown and natural diamonds.


Colour refers to the colour of the stone. When we talk about colour in natural and lab grown diamonds, we actually are talking about the absence of colour in the stone. The less colour, the rarer the diamond. With grey diamonds, morganites and emeralds you want a colourful stone, but with white or classic diamonds you want a completely colourless stone.

The colour of a diamond is rated on a scale from D-Z, each descending letter denotes an increasing amount of light in a diamond.


Clarity refers to the number of amazing inclusions in a gemstone. With lab grown or classic diamonds we look for no inclusions but with grey diamonds we look for the most beautiful inclusions, like a scattering of stars sparkling in the night sky.

Both natural and lab grown diamonds have natural inclusions that vary in size, shape, position, quantity and colour.

Shop our full Lab Grown Diamond Collection here.

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