Lesedi
la Rona", the world's largest gem-quality rough diamond discovered in more
than 100 years, goes on display in London this week before it heads for the
auction at Sotheby block where it is expected to fetch more than US$70 million
(NZ$100 million).
The
1,109-carat diamond was uncovered last November in Botswana by Canadian mining
company Lucara Diamond Corp. Read More
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