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Color
Diamond Colour Means Lack Of Colour
About Color
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Colour is the natural colour of a diamond. Diamonds have slight hints of yellow, brown or grey caused by natural trace elements of nitrogen that were present when the diamond formed under the earth’s crust. The less colour a diamond has, the more rare it is and therefore higher the value.
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The brilliance and fire is far more in diamonds with less colour, as less colour allows more light to pass. A diamond acts as a prism when light passes through it, dividing the light into a spectrum of colors and reflecting it in colorful flashes. This phenomenon is referred to as its FIRE. Presence of colour will diminish the fire as it acts as a filter.
A diamond with high colour grade (one with less colour) will show more colorful fire.
Diamond Grading Scale
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The diamond is graded on these following standards:
Diamond’s colour grading scale begins with the highest grade of D for colourless and continues down the alphabet to grade stones with traces of very faint or light yellowish or brownish colour.
D to F are colourless
G to J are near colourless
K to Z have noticeable colour
The distinctions between colour grades are so subtle that they are often invisible to the untrained eye but can make a big difference in diamond quality and price.
Q & A
WHY DOES THE GIA COLOR GRADING SYSTEM START AT D?
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Before D-to-Z colour grades were universalized, many older systems used A, B, C or roman numbers, or descriptive terms like “blue white” or “gem blue”, which lead to a lot of misinterpretation. So GIA wanted to start fresh, without any association with earlier systems. Thus, they started the colour grade at the letter D
Q.
Q.
ARE DIAMONDS GRADED AS Zs CONSIDERED FANCY-COLOR?
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No, Naturally coloured diamonds outside the D-to-Z colour grading system are called FANCY-colour diamonds. They are diamonds having natural colour beyond grade Z.
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