Andreas Anker, Doug Ashbury, Edward Asscher, Amanda Barnard, Will Bawden, Dave Bennett, Motti Bernstein, Ken Bertagnolli, Michel Boudrie, Joe Boyd, Mary Kay Bryja, Carmen Cassing, Alan Clark, Michael Cowing, Hamilton Currie, Katia Djevahirdjian, Dominick Dunne, Robyn Ellison, Marvin Finker, Fred Fisch, Ed Francis, Rick Frye, Emmanuel Fritsch, Tony George, Al Gilbertson, Eve Goldberg, Saul Goldberg, Scott Guhin, Tony Guthrie, Dan Hausel, Steve Hayden, Russ Hemley, Earl Hines, Tom Hoefer, Martin Irving, Kalpesh Jhaveri, Bruce Kjarsgaard, Daniel Knafo, Kevin Krajick, Cooper Langford, Don Law-West, Francis Leary, Udi Lederer, Arthur Levinson, Erik Lundblad, William Mancini, Paul May, Peter Mikelis, Pascal Mouawad, Ronald Munro, Steve Nurick, Robert Ritchie, Sir. Hugh Roberts, Karin Roef, Daniel Schulze, Adam Shatz, Rick Shatz, Robin Solino, The Family of Herbert Strong, Peter Tandy, Tom Tweedy, Eric Van Valkenburg, Andrew Yacoot, Peter Yantzer.

Aber Resources Ltd, American Gem Society - AGS, American Institute of Diamond Cutting, Argyle Diamonds, Archangel Diamond Corporation, Ashton Mining, Bellataire, Bez Ambar Inc, BHP Billiton, British Geological Survey, Carnegie Institute of Washington, Ceres Crystal Industries, Ceres-USA, Charles & Colvard Ltd, Chatham Created Gems, Christie's, Crystallume Engineered Diamond Products, Cut by Gauge Ernest Slotar Ltd, De Beers Marine, Department of Minerals and Energy Western Australia, Diamond Optics Inc, Diavik Diamond Mines Inc, Eighternity Inc, Element Six Limited, European Gemological Laboratory - EGL USA, Gemmological Association and Gem Testing Laboratory of Great Britain - GAGTL, Gemological Institute of America - GIA, General Electric, GE Superabrasives, Genesis Diamonds, Government of the Northwest Territories, Harry Winston Inc, Hrand Djevahirdjian S.A, Diamond High Council - HRD, H. Tracy Hall Foundation, International Gemological Institute - IGI, International Union of Crystallography - IUCr, K.R. Gems, Lazare Diamonds, Lili Diamond, Mouawad, Mypodiamond, Namdeb, National Institute of Standards and Technology USA, Oved Diamond Company, Presidium Instruments USA, Rick Shatz Inc, Royal Asscher Diamond Company, Sarin Technologies, Sotheby's, Swiss Gemmological Institute - SSEF, Tahera Corporation, Tiffany & Co, Trillion Diamond Company, Tycoon Diamond Corporation, United Reef Limited, University of Bristol UK, University of California at Berkley, University of Toronto, US Geological Survey, US Central Intelligence Agency, US Synthetic Corporation, William Goldberg Diamond Corporation, Yehuda Diamonds, Zale Corporation.