www.diamondologist.com
Sofus S Michelsen,rough diamonds,diamond cutting,rough diamond evaluation,Michelsen Gemstone Index,The Art of Diamond Cutting,diamond cuttering,diamond mining,West Africa,Gemologist,certified master cutter,geologist,gemstone evalution,The Diamond Ins...
язык: English владелец: The Diamond Institute связи: 5 Page Rank: 3 дата: 04.08.2013