Emerald is the green to blueish green variety of the mineral beryl colored by trace elements of chromium and vanadium. The most desirable emerald colors are bluish green to pure green with strong to vivid saturation and medium to meduim-dark tone.
Beryl
7.5 to 8
Fair to Good
Afghanistan, Brazil, China, Colombia, Ethiopia, India, Madagascar, Nigeria, Pakistan, Russia, Zambia, Zimbabwe.
