The “4 Cs”
The splendour of a diamond is determined by four factors, commonly known as The 4 C’s: Cut, Carat Weight, Clarity and Colour.
The weight of a diamond is measured in carats. One carat is equivalent to 0.20 grams. For diamonds under one carat, each carat is divided into 100 points. Thus, a diamond of 0.50 carat is commonly referred to as a 0.50-pointer.
Truly colourless diamonds are very rare. The closer the diamond is to colourless, the more exceptional the stone. A diamond’s colour is represented by colour grades; each letter stands for a range of colour and is a measure of how noticeable a colour is. The colour grade is rated from D (colourless) to Z (light yellow).
The clarity of a diamond is determined by the extent and position of its inclusions, which are a diamond’s natural characteristics. Such inclusions affect a diamond’s visual appearance and the amount of light reflected and refracted. Thus, the fewer the inclusions, the rarer and more valuable the diamond is.
The cut of a diamond, its symmetry and balance, is the most unique and important contributing factor to its beauty. A diamond’s proportions affect its light performance, and hence the overall appeal. A diamond cut to good proportions will scintillate with fiery lights and utmost luminosity.