Pure and transparent, the gemstone of eternal youth, emerald has a green colour ranging from yellowish green to bluish green, its tone from very light to very dark, and is a variety of beryl. It took its name from the Persian word for green and evolved into the Greek and Latin smaragdus. Legend tells that Saint Michael threw off Lucifer's crown, out of which fell a giant emerald. The Holy Grail was fashioned from Lucifer's gem. This emerald fell on Earth, and it was offered to the Queen of Sheba by Solomon. It is found in South Africa, Brazil, South America, and in Chivor and Muzo mines in Colombia.... It is the traditional 55th wedding anniversary gift. It brings calm, inner peace and harmony on the physical, intellectual and emotional levels. It is also the stone of knowledge and intuition. If it provides prosperity, it brings incorruptibility with it. It has been used as an elixir for nearly five centuries to improve specific health problems.