Diamond is a very precious gem, and its internal characteristics and quality evaluation standards are very important for buyers. Diamond clarity grading table is a standard used to describe the internal characteristics of diamonds, which can help us understand the quality and value of diamonds. In this paper, we will introduce the diamond clarity classification table in detail and provide some operation steps to help you better understand and evaluate the diamond clarity.

1. What is diamond clarity?

Diamond clarity refers to the degree of internal characteristics such as package and crack inside the diamond. These internal characteristics will affect the optical characteristics and appearance of diamonds. The diamond clarity classification table describes the clarity of diamonds by dividing their internal characteristics into different grades.

Second, the diamond clarity classification table

The diamond clarity grading table is usually formulated by authoritative organizations such as the International Jewelry Association (GIA). The following are the common grades of GIA diamond clarity grades:

1.FL: There is no flaw inside or outside, which is the highest level of cleanliness. This kind of diamond is very rare and expensive.

2.IF (immaculate interior): there are only tiny internal flaws, which are almost invisible to the naked eye. This kind of diamond is also very precious.

3.VVS 1 and VVS2 (very, very small internal defects): there are very small internal defects, which are difficult to see even under the magnifying glass of 10 times.

4.VS 1 and VS2 (small internal defects): There are small internal defects, but they can still be seen under the magnifying glass of 10 times.

5.SI 1 and SI2 (small internal defects): There are obvious internal defects, but they are not obvious to the naked eye.

6.I 1, I2, I3 (obvious internal defects): There are obvious internal defects, which will affect the transparency and optical properties of the diamond.

Third, how to evaluate the clarity of diamonds?

1. Use a magnifying glass: use a magnifying glass 10 to observe the internal characteristics of the diamond. According to the diamond clarity classification table, judge the diamond clarity grade.

2. Observe the defects visible to the naked eye: Observe the appearance of the diamond with the naked eye to see if there are obvious black spots, clouds or cracks.

3. Reference certificate: When buying diamonds, you must ask for a certificate issued by GIA or other authoritative organizations. The certificate will describe the clarity grade and other important information of the diamond in detail.