The emerald is considered one of the oldest gemstones used by humans. Its history goes back to ancient Egypt. Many of the most valuable pieces of jewellery or unique treasures are made of emeralds. For example, the Vienna Treasury holds a small vessel made of a 2680 carat emerald – it is the largest cut emerald in the world.
Colombia is the most famous country of origin for emeralds due to its classic blue-green colour. But they also come from Brazil, Zambia, Ethiopia, Madagascar and other countries.