Xiaowu: 10000-30000W

Secondary five: 40000-60000W

Top five: 70000-90000W W.

Explanation of technical terms:

1 carat:

The word comes from a plant seed called carob. In ancient times, people used it to measure weight. One carat is 200mg, 142 carat is one ounce, carat can be further divided into minutes, 100 carat is 1 carat, and half carat diamond is 50 cents (about100mg).

2. Clarity:

Clarity is determined by judging the number and location of visible defects. Basically, the higher the clarity grade of a gem, the higher its value.

3. Defects:

Most gems contain tiny natural ingredients, which are called flaws. According to the definition, inclusions belong to the internal defects of gems, which increase the uniqueness and individual characteristics. The inclusion is also an exciting golden seal about authenticity, which can record the relationship between the formation of gems and nature.

The clarity of a gem can be judged by judging the number and position of visible inclusions. Basically, the higher the clarity grade, the greater the value of the gem. Usually, inclusions do not affect the luster, and the luster and fire color of gems do not affect the value.

4, flash/flame:

When a gem reflects light, the weak light emitted by the cutting surface is called flash/flame.

5, the ass is too thick/cut too deep:

If the proportion below the waist of the gem is too deep, the light will flow away from the bottom or side, losing its luster and the heat will be bad.

6. The outcrop/cutting is too shallow:

If the proportion below the waist of the gem is too shallow, the light will flow away from the bottom or side and lose its luster, and the value of the gem will become lower.