Diamond Mine,the World's Largest Hole This diamond mine,the world's largest hole, located near the town Mirna in Eastern Siberia, has a diameter of 1.25 km and it's almost 525 meters deep About Admin MC3 This is dummy text. It is not meant to be read. Accordingly, it is difficult to figure out when to end it. But then, this is dummy text. It is not meant to be read. Period. Related Post