World's most expensive rough diamond sells for $63...

http://baltimorecheckbook.tumblr.com/post/144091127912/worlds-most-expensive-rough-diamond-sells-for-63#_=_

Canadian mining firm Lucara has sold a massive 813-carat diamond for $63 million, a new record for a rough gem. The diamond – called “The Constellation” – was pulled out of a mine in Botswana in November 2015.



from http://www.wbaltv.com/money/worlds-most-expensive-rough-diamond-sells-for-63-million/39447322