Emeralds have been an object of desire for many centuries, they are found and mined in many places around the world, the most famous are the mines in Colombia but there are other countries that also mine this stones, Zambia, Brazil and Afghanistan.
Emeralds are always green and the deeper the color the more valuable the stone. Emeralds always have some inclusions, without them are most probably synthetic. Emeralds are treated in 90% of the cases, most use oils and resins, this practice has been done for ages, as a result Emeralds often show some scratches and minor damage to the surface. This is normal and Natural.