Dihaco/Diamanten Handels Compagnie
Dinu Nicolae
Ditchburn Robert W.
Dobrilla Paolo
Dougherty Joseph Patrick
E.R.C. Company Ltd.
Ebe Masataka
EightStar Diamond Company, Inc.
Frangie Nehme
Frei Ephraim
Fukui Hiroyuki
Gem Instruments Corporation
GemDialogue Systems, Inc.
GemEx Systems, Inc.
Gemological Institute of America
Gerrard Donald L.
Geurts Ronald
Gilbertson Al
Gilbertson Alvan
Goldstein Theodore