The Diamonds are classified in 4 C’s – Cut, Colour, Clarity & Carat.
CUT
Of all the 4Cs, Cut has the greatest effect on a diamond’s beauty. In determining the quality of the cut, the diamond grader evaluates the cutter’s skill in the fashioning of the diamond. The more precise the cut, the more captivating the diamond is to the eye.
Colour
The most desirable diamonds are colourless because the absence of colour enhances the diamond's ability to reflect a rainbow of colour. Diamonds are graded on a scale of D (almost clear white) to Z

Carat Weight
Carat weight refers to the size of the diamond. Based on a standard unit of measure, one carat is divided into 100 points. The term originated from carob seeds that were used to balance scales in ancient times.

Clarity
Clarity is the state of being clear or transparent. Diamond clarity is the presence or absence of characteristics called inclusions in the diamond.
When grading the clarity of a diamond, the lab determines the relative visibility of the inclusions in a diamond and their impact on the overall visual appearance.
Since many inclusions and blemishes are very small, and can be difficult to see with the naked eye, they are graded at 10x magnification. Grading at 10x is an industry standard to determine the final clarity grade of the diamond.

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