Unlike other crystals, a diamond?s quality is judged mostly by the absence of color in them. The value of diamond jewelry is judged solely by the purity of its brilliance.
Like any other natural stone, however, diamonds can be found in several shades of colors that are beautiful in themselves.
So far, there's a good range of colors in diamonds, aside from the in-demand blue and pink. Commercially available now are yellow, orange, green, champagne, grey, black, white, red, purple, chameleon and violet diamonds.
Absence of color and perfection
Among jewelers, the best possible diamond stones are those that are totally colorless. They are graded D, meaning they're absolutely free of any color.
Theoretically, a chemically pure and structurally perfect diamond is also perfectly transparent with no color whatsoever. However, a good number of all the diamonds used as gems are imperfect.
A tinge of color
The subsequent group are stones with very slight traces of color which may be seen by a diamond expert. When assembled in to a finished jewelry, the color shades of these stones usually cannot be discerned anymore. Still, they are graded as E or F color diamonds.
Down the road, those stones which show hardly any traces of color are categorized as G or H color diamonds, or maybe I or J color, depending on the strength of the color seen.
Grading and color
Those stones which can be graded between D and F are considered colorless. Those that belong in the G to J group are classified as near-colorless. Those within the K to M grading are slightly colored and the N to Y stones usually looked like light yellow or brown.
One peculiar twist for the rule those diamond stones graded Z are also rare and those bright yellow diamonds are priced higher than the ordinary.
The Gemological Institute of America (GIA) received the present color rating system for white diamonds (?D? down to Z, according to the intensity of the coloration). It has been universally recognized and adapted, overriding the previous older systems.
Fancy
The industry considers diamonds with intense colorations as fancy. A rigorous yellow coloration is regarded as among the fancy colors and belongs to a different color grading system.
Gemologists have another rating system for fancy colored diamonds which is different from that used in white diamonds. However, this is not commonly used because these stones are relatively rare.
The color seen in the stones either detract or enhance its value, with regards to the color itself and the power of the coloration. Examples includes the grade Z bright yellow, or even an intense pink or blue in the stones, each one of which commands a better price.
Impurities
There are causes of these colors in the stones. They are often structural defects in the crystal lattice of the stone or it could be a results of some chemical impurities.
Nitrogen is regarded as the common impurity. It sometimes replaces a small proportion of carbon atoms inside the diamond causing a yellowish or brownish tone.
Many impurities and structural flaws produce different colorations in the diamonds. Impurities are almost always within white diamonds. It is not detectable in the rarest stones.
As always, choosing your diamond jewelry always go back to your own prerogatives around the pros and cons of owning either colored or white diamonds.
Like any other natural stone, however, diamonds can be found in several shades of colors that are beautiful in themselves.
So far, there's a good range of colors in diamonds, aside from the in-demand blue and pink. Commercially available now are yellow, orange, green, champagne, grey, black, white, red, purple, chameleon and violet diamonds.
Absence of color and perfection
Among jewelers, the best possible diamond stones are those that are totally colorless. They are graded D, meaning they're absolutely free of any color.
Theoretically, a chemically pure and structurally perfect diamond is also perfectly transparent with no color whatsoever. However, a good number of all the diamonds used as gems are imperfect.
A tinge of color
The subsequent group are stones with very slight traces of color which may be seen by a diamond expert. When assembled in to a finished jewelry, the color shades of these stones usually cannot be discerned anymore. Still, they are graded as E or F color diamonds.
Down the road, those stones which show hardly any traces of color are categorized as G or H color diamonds, or maybe I or J color, depending on the strength of the color seen.
Grading and color
Those stones which can be graded between D and F are considered colorless. Those that belong in the G to J group are classified as near-colorless. Those within the K to M grading are slightly colored and the N to Y stones usually looked like light yellow or brown.
One peculiar twist for the rule those diamond stones graded Z are also rare and those bright yellow diamonds are priced higher than the ordinary.
The Gemological Institute of America (GIA) received the present color rating system for white diamonds (?D? down to Z, according to the intensity of the coloration). It has been universally recognized and adapted, overriding the previous older systems.
Fancy
The industry considers diamonds with intense colorations as fancy. A rigorous yellow coloration is regarded as among the fancy colors and belongs to a different color grading system.
Gemologists have another rating system for fancy colored diamonds which is different from that used in white diamonds. However, this is not commonly used because these stones are relatively rare.
The color seen in the stones either detract or enhance its value, with regards to the color itself and the power of the coloration. Examples includes the grade Z bright yellow, or even an intense pink or blue in the stones, each one of which commands a better price.
Impurities
There are causes of these colors in the stones. They are often structural defects in the crystal lattice of the stone or it could be a results of some chemical impurities.
Nitrogen is regarded as the common impurity. It sometimes replaces a small proportion of carbon atoms inside the diamond causing a yellowish or brownish tone.
Many impurities and structural flaws produce different colorations in the diamonds. Impurities are almost always within white diamonds. It is not detectable in the rarest stones.
As always, choosing your diamond jewelry always go back to your own prerogatives around the pros and cons of owning either colored or white diamonds.
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