There are only two possible situations of natural oil-free emeralds. One is that emeralds are of good quality and it is impossible to soak in oil. Such emeralds are very rare, so the price of natural oil-free emeralds in this case is very high. Second, the quality of emeralds is very poor, so there is no need to soak in oil.
Oiling emeralds is a helpless measure to better protect emeralds.
Emerald is a natural gem with many cracks and inclusions. Cracks and inclusions have a great influence on the stability of emeralds, which leads to emeralds being easily broken in the cutting process, causing irreparable losses, which is also the main reason for emeralds to produce oil. Of course, oiling will also improve the purity of emeralds to some extent.
Extended information Emerald is known as the king of emeralds, as rare as the bright red Ulamnu, and it is one of the four precious gems (red, blue, emerald and diamond) recognized by the international jewelry industry. Because of its unique green color, unique charm and magical legend, it is deeply favored by westerners.
Emerald symbolizes kindness, self-confidence, kindness, eternity, luck and happiness. Wearing it will bring peace to people's life. This is also the 55th wedding anniversary stone.
Emerald is a very old gem, which was used as jewelry in ancient Egypt.
Too many inclusions will naturally affect the value of gems, but for gem researchers, the inclusions of emeralds are rare samples. By observing different inclusions, we can distinguish different origins and growing environments of gems. Although the inclusion of emerald greatly affects the beauty of gemstones, its beautiful green color is still incomparable to other gemstones.
The green color of emeralds comes from chromium ions, which can be observed by Charles filter. Under the Charles filter, most emeralds will appear dark red due to the existence of chromium ions, while most other green substitutes will appear dark green.
This rule can only be used as a reference for identification and cannot be used to judge whether it is true or not, because some African emeralds are not red under the color filter, on the contrary, some artificial emeralds are strongly red.
Emerald crystals are almost all broken and contain many inclusions, and it is extremely rare to be intact because they are generated in rock formations that are often squeezed by stress. The green color of emeralds is different from other natural emeralds. Because of its many inclusions, more experienced people can distinguish it.
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