According to Astrology, Emerald Gemstone represents the planet Mercury. It is very expensive Gemstone and fine quality Emeralds are found in mines of Scotland and Zambia. Its color can be from light green to dark green. Wearing of emerald in combination of other stones ensures success in competitive exams, trade and business. Also it helps in promotion and prosperity as it enhances intellect, memory, analytical and intellect power. It helps those children who are having problems in their brain, memory and speech. Again emerald in combination of other gems helps to cure breast cancer, mouth cancer, stomach cancer, breathing troubles, nerve diseases, gallstones, insanity, insomnia, eye trouble, pthysis pleurisy, hypertension, meningitis, brain tumor, paralysis and pancreatic trouble.