A combination of vanadium and chromium produces Emerald color, and the more iron in emerald, the bluer it will be. Today, according to the GIA Emerald Institute of Gemology, green braille has a high degree of color density and a medium or dark tone or darkness, and in terms of color type (Hue), the best color is green and bluish green.

How to improve emeralds?
Due to the high pressure during the formation of emeralds in the ground and difficult extraction conditions, natural emeralds may have many fractures and cracks, which is why from the past until now, to cover the cracks, put it in a liquid like a special oil and improve the emerald. 

Emerald lubrication is a global process and about 90% of the emeralds on the market are oiled, but you should note that our emerald crystals must have surface-breaking fractures in order for oil to enter. When rough emerald is extracted from the mine, it is thrown into barrels of oil, and this oil facilitates the cutting process.

The color of emerald is almost constant and does not change in the face of artificial or natural light like the sun and only changes at a temperature of 700 to 800 degrees Celsius. If your emerald ring loses its beauty and shine as a result of contact with detergents, you should put it in a thin layer of colorless oil. To increase the quality of the Paint and prevent light reflection in its cracks, it is usually impregnated with oil or wax, epoxy or plastic.