Belongs to the family of beryl together with other gems such as aquamarine and morganite.
Its colour varies depending on their place of origin, being the most desirable colour a deep green slightly bluish. Colombian emeralds are pure green with a slight blue shade. Brazilian emeralds are slightly lighter in colour and have more yellow. Zambia stones are a good emerald green and clarity is good.
Emeralds often have inclusions or irregular colour distribution and may seem “sleepy”. The emerald cut was designed to give the best of the precious stone and intensify its colour.
*Ring with an emerald-cut emerald and diamonds.