Even though the gemstones are created using questionable from the earth, they frequently find a way to work their way to the outer lining and they are washed by heavy rainfall into nearby creeks and streams. Miners are often found near locations where diamonds have been discovered. Large mining operations unearth the raw stones from deep inside the surface of the earth using explosives or heavy equipment. Canada, Africa, and Australia are leading mining countries with large deposits of such gems. http://all4webs.com/stepdiamonds2017