A diamond’s value is determined by the 4Cs: colour, cut, clarity and carat weight.
CUT
A diamond’s cut refers to its proportions, symmetry or finish. Cut matters since a well-cut diamond reflects maximum light, giving it better sparkle. Shallow-cut and deep-cut diamonds let the light escape at the sides or at the bottom, thereby reducing its sparkle.
COLOUR
CLARITY
Nearly all of diamonds have miniscule specks called inclusions. A diamond’s clarity is determined by its inclusions. The fewer the inclusions, the more light can pass through the diamond.
CARAT
A diamond’s weight is measured in carats. One carat is equal to 0.2 grammes. The higher the carat weight, the more expensive the diamond is. However, you have to note that carat weight is not the same as size.