The many forebays, gates and dams - some of which still exist - in the centre of Divonne served to power local craftmanship, sawmills, papermills and diamond- and fine gemstone-cutting workshops. Diamond working - which was closely tied to the clockmaking industry - appeared during the 18th century and first developed in the High-Jura before settling in the city in the early 20th century. (PNRHJ - Un tour en ville, “A tour of the town”)