"Who first beholds the light of day
In spring's sweet, flower month of May
And wears an emerald all her life
Shall be a loved and a loving wife"
The emerald’s name is indirectly derived from the Greek word “smaragdos,” a term ambiguously applied to several kinds of green stones. The history of emeralds can be traced back to antiquity - they were certainly worn by royalty in Babylon and Egypt.
The emerald belongs to the beryl family of minerals that include aquamarine. Beryl, or beryllium aluminum silicate, is a six-sided symmetrical crystal
Emeralds vary in colour from light to deep green. It’s commonly thought that an emerald’s colour derives from the presence of chromium and/or vanadium, replacing some of the aluminum in the mineral’s structure. The stone can, however, lose its colour when heated strongly.
The synthetic manufacturing of emeralds was achieved by German chemists shortly before World War II; growing synthetic stones of fine quality began in the United States in 1946. .
Emeralds are most frequently found inside a form of shale – a fine-grained sedimentary rock. Emerald-bearing shale has undergone recrystallization due to changes in the physical environment such as pressure and temperature.
The stone was once believed to prevent epilepsy, stop bleeding, cure dysentery and fever, and protect the wearer from panic. Its magnificent green colour was said to rest and relieve the eye.
The ancient Romans dedicated the emerald to the goddess Venus, because it symbolized the reproductive forces of nature. The early Christians saw it as a symbol of the resurrection of Christ. In the Middle Ages, emeralds were believed to hold the power to foretell the future.