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...
Språk: English Owner: The Diamond Institute Länkar: 5 Page Rank: 3 Uppdaterad: 2013-08-04