WIDTH
Width is calculated by measuring the two ends of the girdle. Additionally, it is important to know other technical details about diamonds; some of them are listed below:
FACETS
The sparkle of a diamond depends on its facets. Each facet reflects light like a mirror, hence the more facets there are, the more brilliant the diamond appears.
BRILLIANCE
The ability of a diamond to reflect white light (very important).
FIRE
The ability of a diamond to disperse colored light (important in fancy color diamonds). It can take the form of any color in the color spectrum, from red to orange, yellow, green, blue, and purple.
PROPORTIONS IN A DIAMOND
The best proportions of a diamond allow for better refraction of light. If a diamond is cut too shallow or too deep, the light reflection is poor because it is lost sideways. The ideal proportions for a round diamond are listed below.