The glorious green colour of Emerald Gemstone has made the stone highly prized for many thousands of years. Believed to protect the wearer from misfortune, it has a mystical quality that soothes and promotes tranquillity.
The first known emerald mine was Cleopatra’s Mine in Egypt, which supplied the entire world until the incredible emeralds in South America were discovered. The majority of the emeralds in the world come either from Colombia or Africa, and emeralds from each country have quite distinctive appearances.
Fine emeralds can be either strong, deep green or lighter, brighter green, depending on personal preference. This gemstone is usually more heavily included than others, and it is possible to identify not only which country the emerald comes from by examining the inclusions but, in some cases, which mine in that country! Emerald is the birthstone for May and is used to celebrate the 55th Wedding anniversary.
Quality or Emeralds
As with any gemstone, emerald quality varies from very high to very low. The clarity of emeralds is not as important as that of other gemstones, as the stone is traditionally more heavily included than other coloured stones.
Emerald Gemstone Treatment
Oiling emeralds involves filling in surface-reaching fractures in the stone with colourless oil to improve the appearance of those fractures. A high percentage of emeralds are treated in this way, so you may always assume the stone has been treated in this manner. Untreated, bright, clean, and clean stones are highly prized and always cost more than a heated stone of similar appearance.
Emerald Folklore
The emerald is traditionally a feminine stone and is associated with the planet Venus and romantic love. The green of the emerald is said to be beneficial to the sight and has been ascribed excellent healing power. It is also symbolic of Spring and new life. The earliest reference to emeralds in Western literature comes from Aristotle; he was a great fan of the gemstone and wrote that owning an emerald increases the owner’s importance in presence and speech during business, gives victory in trials, helps settle litigation, and comforts and soothes eyesight. The Romans once considered light-coloured Emeralds unripe and believed that an Emerald becomes a darker shade of green as it matures. Emerald is the traditional birthstone for May and celebrates its 55th anniversary.
Emerald Gemstone Care
Jewellery made with emeralds, particularly rings, must be treated with care. Emerald jewellery should never be cleaned in an ultrasonic, as the combination of heat and vibration is hazardous to the structure of the stone. Emerald is a relatively soft and brittle gem that requires considerable care when worn and cleaned. Exposure to heat may cause the oil used to treat emeralds to soften and run out of the stone; whenever possible, emeralds should be removed from the setting before any work is done. An emerald may shatter if dropped or hit, is susceptible to thermal shock and should never be subjected to heat or extreme cold.
Scientific Information
Refractive Index 1.56-1.60
Hardness 7.5-8
Fracture Conchoidal
Lustre Vitreous