Kentucky mining institute
Kentucky mining institute
http://www.miningusa.com/kmi/default.htm
Rex mining
Rexmining is a fully integrated diamond mining company, active in all facets of the diamond industry: worldwide exploration, development and mining, polishing and jewelry design
http://www.rexmining.com/
Herkimer diamand mines
Herkimer diamand mines
http://www.herkimerdiamond.com/
Diamcor mining inc.
Diamcor mining inc.
http://www.diamcormining.com/
De Beers
De Beers
http://www.debeersgroup.com/debeersweb
Aber Diamond Corporation
Aber Diamond Corporation
http://www.aber.ca/index.htm