Diamond Grading
What makes a diamond expensive is the properties of the diamond. When talking about diamond, the word "four Cs" will come up somewhere in the conversation. To find the diamond of your dream or purchasing a diamond ring for your special occassion within the right budget, the four Cs play an important role.
What are the four Cs?
The four Cs are associated with the properties of a diamond including colour, clarity, cut and carats. These four properties have tremedous effect when it comes to the price and the value of diamond. Different combinations of the four Cs could make a diamond worth more or less than it appears.
Colour
Colour of diamond is on of the most important properties of a diamond. A diamond that possesses less colour the more valuable it becomes due to its rarity.
| D | Absolutely colourless. The clearest diamond colour grade |
| E | Extremely colourless. A high quality diamond. |
| F | Colourless. Lowest of colourless grades. |
| G–H | Near-colourless. When compared to better colour grades, slight colour detectable. |
| I–J | Near-colourless. Colour slightly detected. |
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Fancy Colour Diamond
There are exceptions to everything, a colour diamond could have a high value as the colourless diamond. If a diamond possesses a colour and reaches certain point of saturation where it becomes very rare, these diamonds are known as Fancy Colour Diamond. The value of these diamond can be as high as or even higher than the colourless diamond.
Clarity
A diamond's clarity is determined by its internal inclusions .Inclusions usually occured when the diamond was created. During crystallization process of diamond, other minerals nearby, or other bits of carbon forming more quickly than the mass rock, may become trapped within the mass rock. The clarity of a diamond is graded by using 10X magnification and final grade is usually determined by how easy and the size of the inclusions and blemishes appears in by the eye.
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Cut
Cut refers to the quality of the cut, not the style of the cut. A diamond that possesses less colour with minimal inclusions, if the stone is not cut well, it will not maximize the brilliance of a diamond. The cut is usually depands on the skills of the gemstone cutter. When evaluating the cut of the stone, the following are considered, the proportions, symmetry, finish details and polish.
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Carat
A carat is a unit of measurement, it's the unit used to weigh a gemstone. One carat is equal to 200 milligrams or 0.2 gram.
The name "carat" is taken from the carob seeds that people once used in ancient times to balance scales. These seeds are uniform in shape and weight.
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