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Also because of their superior. Most diamonds formed more than a billion years ago deep in the earths mantle.
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3 A billion years.
. Each letter grade has a clearly defined narrow range of color appearance. The larger the moissanite the easier it is to notice. This means that most diamonds will hold up to daily wear and tear while many simulants might soon develop scratches and visible abrasions especially along facet junctions.
The Mohs Scale rates the hardness of gems and minerals. The 4Cs created by GIA are considered the global language of diamond quality. Value and rarity are related.
Diamonds are graded on a GIA Color scale from D to Z while moissanites are not categorized by their color. In this case a colorless diamond is more rare and more valuable than one with a slight yellow color. The same relationship between rarity and value exists for clarity cut and carat weight.
The human contribution to a diamonds beauty is a well-executed cut. GIA Interactive Color Scale. So a colorless diamond rates higher on the color grading scale than a diamond that is light yellow.
The 23 color grades on the GIA Color Scale or diamond color chart are subdivided into five subcategories which are. The 4Cs describe the individual qualities of a diamond and the value of. Moissanites are however not colorless and resemble the K grade on the GIA color scale used to grade the color of diamonds.
With diamonds color distinctions are so subtle that they are often not. Diamond a 10 is at the top making it one of the hardest natural substances on earth. When under certain lights yellow and green tints can be seen in moissanites.
Diamond is the only gem composed of one single element.
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