The rough 709.41 ct was found in Sierra Leone in 2017. The valuation of this stone is not available, as of yet.
This rough was called Peace Diamond and will be auctioned in New York in December 2017. It failed to meet the government reserve price when it was auctioned last spring, as the highest bid of $7.7m was rejected.
The sale of this stone will bring a difference to the economy of Sierra Leone, where the population reside in extreme poverty.
The stone is not of gem quality, therefore it will not be of a high value once it is cut.