Understanding the 4c's of Diamonds
The common language for diamond grading is expressed as the 4Cs: color,
clarity, cut, and carat weight. It is important to note that a diamond's value
depends on the combination of all four of these qualities. This system of grading, established by the Gem Institute of America, ensures a consistent and efficient method for characterizing diamonds.
A diamond's cut refers to the way it allows light to be reflected from its surface to the human eye. It is the reason why a diamond can sparkle unlike any other precious element on earth.
Because natural diamonds are made from intense amounts of pressure applied to carbon deep in the earth, it is natural for one to contain flaws. Inclusions are internal flaws and exclusions are external flaws.
Because natural diamonds are made from intense amounts of pressure applied to carbon deep in the earth, it is natural for one to contain flaws.
Diamond color is based on the presence or absence of pigment. An ideal diamond is perfectly white with no hue, optimum for light penetration.
One carat equals 200 milligrams in weight. For diamonds under one carat, each carat is divided into 100 points – similar to pennies in a dollar. 0.75 ct. = 75 points, 1/2 ct. = 50 points.