In a gem mining field in Brazil, an enormous £238million emerald rock discovered is being kept under heavy security in a secret location as the owner exclusively revealed he is living in fear of kidnapping, extortion and armed robbery. The giant stone is extremely rare because of its ‘considerable size and the quality of its gigantic crystals’. The massive emerald, which weighs 794 pounds (360kg) and stands around 4.3 feet high (1.3metres), was unearthed a month ago, 200 metres deep inside the Carnaiba Mine, a gem-rich mineral exploration area in Bahia, north east Brazil. There are only two giant stones with this density of crystals in the world, the other one, the Bahia emerald, which was the subject of a legal dispute over ownership between Brazil and America, ‘does not possess the same pure quality as the new Carnaiba emerald’. This stone has emerald beryls spread all over it. Experts predict the impressive jewelled stone, which contains around 180,000 carats of emerald crystals, could fetch around £238million. The Carnaiba emerald was found by members of the Bahia Mineral Cooperative, a group of workers legally authorized to explore the area. Extracting the stone was extremely difficult. It took ten of them more than a week to get it out because it was 200 metres down in the ground. ‘The owner of the stone will have the authorization to do with it legally what he wants. And any transaction will be handled legitimately. This is not the type of emerald used for making jewellery; it’s more a collector’s item which would look spectacular as an ornament in the foray of a wealthy home or make exceptional viewing in a museum.