Color : Green to dark green.
Hardness : 7 ½ - 8

Fine emeralds come from Colombia, Zambia, Brazil, Zimbabwe, Pakistan, Russia and other countries. Deep green is the most desired color in emeralds. The paler the color of the emerald, the lesser its value. Flawless emeralds are very uncommon, and are noted for their great value. Some people actually prefer an emerald with very minute flaws over a flawless emerald, as this proves authenticity of the stone. Although many people consider Colombia to be the source of the best emeralds, country of origin is never a guarantee of quality. Even the best mine produces mostly low quality gemstones because good qualities are very rare! Emeralds are traditionally filled with oil to minimize the impact of their flaws. Cleaning emeralds with hot soapy water, steam or in an ultrasonic cleaner should be avoided as this may remove or damage the oil, making the flaws more visible. They are most often cut in a rectangular step-cut, which is now popularly known as the emerald cut, developed specifically for this gem to reduce the amount of pressure during cutting. Emerald is the most famous and favored green gemstone. Its beautiful green color, combined with durability and rarity, make it one of the most valuable gemstones. Emeralds are durable gemstones. With a little care, your emerald will be treasured by you and your descendants thousands of years to come!