Emeralds

When choosing an emerald, the most important value factor to consider is their colour. Attractive bright stones with a light green colour are much sought after, excluding other factors, the more vivid the green, the more valuable the emerald. In contrast to other beryl gemstones, emerald is typically heavily flawed with cracks and inclusions of fluid and minerals. These inclusions are called "jardin" (from the French for garden) as they typically resemble leaves and branches. These characteristics are not looked upon as negative aspects for emerald as they would be for other gemstones. Indeed, these inclusions are considered part of the character of the stone and are used to assure the purchaser that the stone is genuine. Because emeralds are so rare without inclusions, their presence does not overly detract from the value of the emerald. Most emeralds on the market today have been treated with various types of oil or resin to improve their strength and appearance.

Emerald is a medium hard gemstone and is very heat sensitive. The typical inclusions can affect the durability, so emerald is easy to chip. Lastly the oil treatment can be leached when the stone is cleaned, causing the gem's appearance to change. Extreme care must be taken when working with emerald set jewellery and the wearer needs to treat the gem with care.

Emerald is one of the most difficult gemstones to cut because of the high value of the rough stone and the many inclusions found in crystals. Small changes in orientation can make a large difference in the final appearance of the gem. Skilled craftsmen who specialise in cutting emerald can be found in cities around the world for jewellers who insist on having stones perfected for the optimum brilliance and vibrancy. Emeralds are cut in Jaipur, India and Tel-Aviv, Israel as well as in the mining countries.

For further information on emeralds please visit our Facts & Folklore section.