As mentioned before, emeralds are the birthstone for May, so we thought it would be a great opportunity to share a little bit about emeralds. The word Emerald is derived from the Greek word “Smaragdos” which means “green stone.” Emeralds are considered precious gems and have been found in ancient Egyptian and Etruscan tombs dating back to 3000 to 1500 B.C. It is believed that Cleopatra loved emeralds so much that she
claimed the mines all for herself. She was known for wearing lots of large emerald jewelry and gave emeralds carved with her portrait to the visitors she highly regarded. Emeralds have also been frequently used in the decorations of sacred images throughout the ages.
The meaning or significance of emeralds has varied over the years based on locations and culture. Emeralds have been said to give a supernatural ability to foretell future events. They were once thought to improve memory and expression, quicken intelligence, and provide immunity for epilepsy. Now, you will hear that emeralds represent good luck and well-being or represent springtime, beauty, and consistent love.
Here are some particularly interesting historical views on emeralds:
The Romans
In ancient Rome, green was the color of Venus, the goddess of beauty and love. The Romans believed that nothing evil could remain in the presence of the emerald and that it also helped uncover those who were disloyal by changing color and turning pale. The
falling of an emerald from its setting was considered a bad omen. Emeralds were thought to be very beneficial to the eyes and it has been recorded that Emperor Nero, who was very short-sighted, used an emerald eye-glass to watch the gladiatorial contests.
The Incas
The Incas possessed some amazing emeralds. One of their emeralds was described as being as large as the egg of an ostrich and was inhabited by Esmeralda, the chief goddess of Peru. When ransacking the temples of Esmeralda upon their arrival, the Spanish discovered immense quantities of emeralds. Peruvians also believed that the emerald mines were protected by demon spirits.
Emeralds, like all colored gemstones, are graded using four basic components: Color, Cut, Clarity and Crystal. Typically, in the grading of colored gemstones, color is the most important criterion. In grading an emerald, the crystal is considered a close second. A fine emerald must possess not only a pure green hue, but also a high degree of transparency considered a great gem.
Color
Color can be divided into three elements: hue, saturation, and tone. Emeralds occur in hues ranging from yellow-green to blue-green, with the primary hue as green. The hues found adjacent to green on the color wheel, yellow, blue, and red are commonly the secondary hues found in emeralds. Only gems that have medium to dark tone are considered emerald; light-toned gems are known instead as green beryl.
Clarity
Emerald tends to have many inclusions and surface breaking fissures. Unlike diamond, where magnification is needed to grade clarity, emeralds can be graded by eye. If an
emerald has no visible inclusions the eye, it is considered flawless. Fine inclusions do not diminish the value of emeralds. Stones that lack surface breaking fissures are extremely rare and almost all emeralds are treated or “oiled” to enhance the apparent clarity. Eye-clean stones with a bright primary green hue with no more than 15% of any secondary hue or combination of a medium-dark tone have a better value.
Treatments
Again, most emeralds are oiled with cedar oil in order to improve their clarity. Other liquids, including synthetic oils and polymers can also used. The use of oil is traditional and widely accepted by the gem trade. Other treatments, such as using green-tinted oil, are
not accepted in the trade. The laboratory community has standardized the language for grading the clarity of emeralds. Emeralds are graded on a scale: none, minor, moderate and highly enhanced. Laboratories apply the criteria differently and some consider any traces of oil or polymers enhancement, while some will not consider trace amounts if it does not improve the look of the emerald.
Although many people consider Colombia to be the source of the best emeralds, the country of origin is never a guarantee of quality. Brazil , Zambia, Zimbabwe, Afghanistan and Russia are also producers of high quality stones.




















