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Over the years, diamond professionals have developed standards for comparing and evaluating these precious stones.These standards are better known as the 4 C's; Carat weight, Color, Clarity, and Cut.
CARAT WEIGHT
A carat is the unit of measurement which the jewelry industry uses to weigh diamonds. One carat is equal to .20 grams. Often diamond weight is declared in points. One carat is equal to 100 points. Thus, a .75 carat diamond is equivalent to 75 points.
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What makes diamonds stand out beyond any other precious gemstone is their fire and brilliance. While nature determines the color and clarity of a stone, the cut is dependent solely upon the skill of the cutter.
A diamond gets its brilliance and scintillation by cutting and polishing the diamond facets to allow the maximum amount of light that enters through its top to be reflected and dispersed back. When all the angles are correct, the light that enters is dispersed back through the diamonds top facets.
COLOR
The color of a diamond
has a significant impact on its value. The color scale ranges from D
to Z, from colouless to light yellow, respectively.
CLARITY
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Clarity refers to how many flaws, or inclusions, are in the diamond. To determine a diamonds clarity grade, it must be examined under 10x magnification. The fewer inclusions, the rarer your diamond will be. Generally, if a diamond is SI-2 or above, it is flawless to the naked eye. If there is even a tiny inclusion visible to the unaided eye, the stone is usually graded an I-1.
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