Emerald Gemstones Hardness 7.5 - 8.0. Appearance Emerald refers to the green variety of beryl . There are however, gem quality green beryl s which are not emeralds.
All emeralds contain inclusions, which are evidence as to the genuineness of the stone.
May. Enhancements Emerald is usually treated with colorless oil, wax, or natural and synthetic resins into voids to improve appearance. Surface cavities of emerald is commonly filled with a hardened colorless substance. Emerald is also occasionally dyed with dye or colored oil. More information on gemstone enhancements. Prices are subject to change without notice.