Emerald is famous for its beautiful colors, and its resources are scarce and valuable. It is also highly sought after. It is also known as the world's four treasures with diamonds, rubies and sapphires.
Such precious emeralds, there are many counterfeit products on the market. They are similar in color and similar in quality. They are used to pretend to be emeralds such as zircon, green olivine and green garnet. How do we identify emeralds in the face of so many counterfeits?
First, the refractive index
Emeralds have a refractive index between 1.57 and 1.59, while counterfeit products generally have a refractive index lower than 1.57 and higher than 1.59, but the true and false can be distinguished by detecting the refractive index.
Second, the proportion
Unlike other jewels and jade, emeralds are lighter in weight, and many gemstones are heavier than emeralds, and can be distinguished by hand weight.
Third, the color change
Natural emeralds are dark red under ultraviolet light, but some counterfeits emit strong red fluorescence; if viewed with a Chelsea filter, the emeralds will be red and some natural stones will be green.
Fourth, the inclusion body
Most of the natural emerald gemstones have some inclusions such as enamel and impurities, and there are needle-like, columnar, granular and other crystalline substances. There is no such thing as a synthetic emerald, and the other gemstones are not the same inside. We can use a magnifying glass or microscope to observe the internal structure of the emerald. However, the identification of emeralds will also have an accidental situation, and it will not be identified by the instrument. Therefore, when looking at emeralds, you should also remember to read the certificate, and the certificate will provide helpful information.
Emerald is one of the precious gemstones. In the eyes of Westerners, it is the king of emeralds. It worships as much as the worship of emeralds by the East.
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