British diamond mining firm – Gem Diamonds Limited, have unearthed an huge 164 carat white diamond in the rough. The diamond was discovered on April 30th this year, and since has been sold for £6 million in its rough form. The gem is reported to be an exceptional D colour graded stone and has the potential to be cut into desirable flawless polished diamonds of all carat weights – like round brilliant cut and princess cut diamonds. The gem was recovered at the Letseng mine from the main pipe an sold for £37,000 per carat. The British mining company were also delighted to annonce that in May this year, at the same mine they also recovered a 103ct rough diamond. Although the diamond is not a high a quality as the 164 carat diamond, the stone will be sold this month for a large sum. A few years ago, the 14th largest diamond weighing a huge 550 carats was discovered at the same mine in Letseng, Africa. The diamond was in between the size of a golf and cricket ball.