170 carat pink diamond found in Angola

A pink diamond weighing in at a whopping 170 carats was found in Angola.  
The diamond is the largest discovered in 300 years.  
Only 1 in 10,000 diamonds found are colored and only 1 in 100 are over 10 carats.  
The pink gemstone will eventually be auctioned. 
So far, no value has been given. 
However, for reference, a 15.10 carat blue diamond sold last April for $57.5 million.