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The meaning of diamond grading (Ⅰ)
2023-04-03 00:00:00
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The "4C" grading standard of diamonds is a comprehensive summary and comprehensi
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The "4C" grading standard of diamonds is a comprehensive summary and comprehensive evaluation of diamond quality. The size of the weight means the size of the size. Only diamonds of comparable size can exhibit the special beauty of brilliance and fire. Small diamonds cannot show enough brilliance, so they are usually group-set to reflect their collective effect. Generally, diamonds with a weight of more than 0.3 ct can better show the brightness of the diamond, and diamonds with a weight of more than 0.7 ct can better show the fire of the diamond. Therefore, the weight of the diamond is the basis for the diamond to display beautiful optical effects.
On the other hand, there are far fewer large diamonds produced in nature than small diamonds, so the size of diamond particles also means differences in their rarity. Large-grained diamonds produced in nature are very rare. Currently, the largest-grained diamond produced in the world is known to be the Cullinan diamond, whose rough weight is 3106 ct. Therefore, weight is not only the basis for showing beauty, but also an important symbol of the preciousness and rarity of diamonds.
In the diamond trade, the unit to measure the weight of a diamond is carat (ct), and 1 ct is equal to 0.2g. It can be said that diamonds are the smallest commodity with the highest value. The larger the diamond, the more precious and rare it is, and the higher its value.
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