The source of the Russian diamond industry is the giant mines centred on the city of Mirny, in eastern Siberia.
Mirny is a Russian small town located in the middle of a great plain. But instead of single family houses it has mostly tall six story apartment houses built on concrete stilts to keep them from sinking in the permafrost.
Pics: http://public.fotki.com/YL/other_places/mirny_russia/
Buy a Diamond (3.81 carat octahedral crystal) from Mirny.