Monday, December 21, 2009

Diamonds: How are They Valued?

Cut: A diamonds' cut influences the brilliance, or light reflecting qualities of the gem, at the same time it enhances the fire of the diamond, or that rainbow quality. A good cut enhances both qualities, fire and brilliance, without sacrificing one for the other. A well cut diamond balances the depth of the diamond to the breadth of the diamond. A poorly cut diamond of the same size can look flat and be more vulnerable to cleavage and breakage.

Clarity: Diamonds are crystalline carbon. The clarity of the diamond refers to the purity of the stone and imperfections within the crystalline structure and on its surface. There is no such thing as a flawless diamond in nature. Sometimes this clarity factor is referred to as the cleanliness of the stone. If a stone is viewed under 10x magnification and no imperfections can be seen, either internally (inclusions) or externally (blemishes), the stone is referred to in the trade as flawless. A microscopic speck of carbon, undetectable by the human eye, can bring down the value of the diamond substantially. There are five commonly used methods for grading clarity. Just keep in mind the cleaner the stone, the more valuable it is, the more it costs.

1 comment:

aliah said...

Diamonds are valued on cut, clarity, carats and color. Most diamonds are bought for an engagement or wedding rings.
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