Carat is a unit of weight equal to 200 milligrams and is used for measuring the weight of precious stones: a 10-carat diamond ring.

Cutting in a diamond will define the quality of the angles, proportions, facets, and finishing details.

The colour of a diamond is the next important element of the 4 Cs. The diamond's colour ranges from an icy white colourless to light yellow. It's challenging to tell the difference between one colour grade and another.

The clarity in a diamond defines how clean the diamond is of inclusions and blemishes.