Emerald is one of the gems with a very long history. It has been very popular since ancient Egypt. Its charming green is very eye-catching and has captured the hearts of many consumers.

A very common problem in emeralds is oil immersion.

Many consumers have heard the oil discoloration for immersion oil. In fact, as long as they have a correct understanding of emerald immersion oil, this will not be the case.

The formation of emeralds is accompanied by violent geological movement. It is a gemstone with multiple cracks and multiple inclusions by nature. It is very easy to break during the cutting process. After long-term exploration, the cutter found that emeralds can be strengthened by immersion oil. To avoid this problem, of course, it will also improve the clarity of the emerald to a certain extent. The main function of emerald immersion oil is to strengthen and improve the clarity.

Therefore, from the perspective of rarity, the value of oil-free emeralds is much higher than that of oily emeralds. Many people will wonder, it would be fine to directly divide the emeralds into oily and oil-free emeralds. Why do we need to distinguish the oil content?

The main reason for distinguishing the oil content is that the filling oil is not ordinary colorless oil. Palm oil and cedar oil are two mineral oils that are more common. Although the effect of emerald leaching oil is very stable, the oil content is a little bit. To a certain extent, it can reflect the quality difference of emeralds, so it is necessary to test the oil content of emeralds.

When the structure of emeralds is very dense, oil cannot enter the fissures of emeralds. Such emeralds have very low oil content, or even none.

On the contrary, the higher the content, the looser the structure of the emerald, or the more cracks, the clarity of the emerald will not be very good, and the quality is not very high.

Emerald immersion oil has always been a very controversial issue. It is very important to correctly understand the problem of emerald immersion oil. Is it better to buy oil-free emeralds? Are oil-free emeralds worth buying? You need to choose based on your own needs and acceptance.