Usually, people will use the size of a soybean to compare a one-carat diamond ring, from which it can be inferred that a ten-carat diamond ring is equivalent to a big peanut. Of course, due to the different cutting techniques and inlay techniques, it is also a ten-carat diamond ring, and there will be some differences in visual size.
The standard of diamond pricing is based on 4c parameters, that is, the size, color, clarity and cut of diamond, combined with fluorescence and milk coffee green. 10 carat diamonds are very rare, and the price is not low, but the price fluctuates widely according to different indicators.
1, mainstream indicators: H-I-J color, SI 1-2 cleanliness level, ideal cut, the price is 2-3 million RMB.
2, high-end indicators: E-F color, VS and above clarity level, ideal cut, the price is 6 million to 8 million yuan.
3. Low-end indicators: K-L-M-N color grade, I 1- I2 grade clarity, obvious defects can be seen by naked eyes, and poor cutting, the price is also 400,000-800,000 RMB.
clarity
Clarity of diamond refers to the extent to which it has no inclusions and surface features. Natural diamond is formed by carbon under high temperature and high pressure. This process also leads to the internal features of each diamond, which are called "inclusions" and those on the surface of the diamond are called "surface features".
The evaluation of diamond clarity includes the identification of the number, size, visibility, type and location of the above features and their influence on the overall appearance of the diamond. Although there is no perfect natural diamond in the world, the higher the clarity, the higher the value.
GIA diamond clarity standard is divided into 6 categories, 1 1 grade.
Flawless level (FL):
Under the magnifying glass of 10, the diamond has no inclusions or surface features.
Internal flawless level (IF):
Under the magnifying glass of 10, there is no inclusion in the diamond.
Very slight inclusion levels (VVS 1 and VVS2):
Under the magnifying glass of 10 times, there are tiny inclusions in the diamond, which is difficult for even professional appraisers to see.
Slight inclusion levels (VS 1 and VS2):
Under the magnifying glass of 10 times, there are tiny inclusions in the diamond.
Micro-inclusion levels (SI 1 and SI2):
Under the magnifying glass of 10, the diamond has visible inclusions.
Inclusions (P 1, P2 and P3):
The defects of the diamond can be clearly seen under the magnifying glass of 10, which may affect the transparency and luster of the diamond.