Who wants to offer - or receive - a piece of jewellery stained with severe environment pollution? Public awareness of gem mining consequences has increased in the recent years. But when it comes to gold, people just don’t realize yet: a 10 grams gold ring equals three tons of toxic waste.

In Colombia, at the heart of the Choco province, a group of miners have decided to change things. They intend to get rid of the companies that for decades have been massively extracting gold and platinum leaving barren land where before grew one of the richest and most biodiverse rain forests in the world. Every day, there, tons of cyanide and mercury are dumped in rivers and soil with fatal consequences for the crops, the animals and the people. But now locals are promoting the mining techniques of their ancestors- though less productive, they are friendly with their land.

From the store of a peculiar jeweler in London to the devastated rain forest of Chocó, Lorenzo Morales and Charlotte de Beauvoir tell us the story of how this unique community of miners in Colombia is fighting to turn a toxic industry into a global green market.