Obatake Derrick S.
Öfner Herbert
Ollech Wolf
Olsen Sherry A.
Onyx Diamonds Ltd.
Ophir Jack
Orogem, Inc.
Orr Susanna M.
Otteson Kathy L.
Ousley Mitchell D.
Ovadia Yosef Diamonds Ltd.
Owens Thomas M.
Canada
World
United States