Essential notes on precious stones
The Emerald is a green member of the popular beryl family of minerals. The green color occurs when pure, clear beryl contains either chromium or vanadium.
On the Mohs hardness scale emerald is 7.5-8, even less when is very included.
Emerald is the birthstone for the month May. Emeralds are traditionally thought to enhance the clairvoyance of their wearers. Traditionally, Emeralds are worn to promote healing and enhance love and contentment.
Colombian Emeralds, were exists around 100 mines, are among the world's most beautiful, with rich grass-green coloring that's often kissed with a touch of blue. Quality Emeralds are also found in India, South Africa, Afghanistan, Pakistan, Russia, and Zimbabwe. Recent finds in North Carolina may provide us with quality Emeralds if the mine continues to produce stones.
Rough clear emeralds are cut faceted, most often in the characteristic emerald cut, while the ones less clearly or with slight cracks, being more fragile, are cut as cabochon, or even spherical.
Egyptian Emeralds were introduced to the world about 4,000 years ago, during Cleopatra time, being extracted near Asuan, but the stones from those mines are a duller green and are not considered high quality by today's standards. Mummies were often buried with Emeralds. The gemstones were also popular in ancient Rome.