Sergey Sivovolenko, OctoNus, Moscow, Russia: serg@next.msu.ru

Yuri Shelementiev, MSU Gemological Center, Moscow, Russia: jshelem@geol.msu.ru

Garry Holloway, Diamond-Cut, Melbourne, Australia: precious@hotkey.net.au

Janak Mistry, Lexus SoftMac, Surat, India: janakmistry@hotmail.com

Sergey Oulin, vice-president of ALROSA Company, General director of "Diamond World" JSC,
President of Diamond Chamber of Russia: s_oulin@alrosa.ru, post@diamond-chamber.ru