NEW YORK (Reuters) - It's the largest and most valuable blue diamond to ever come to auction. And, it's a recent discovery. The more than 15-carat De .
NEW YORK (Reuters) - It's the largest and most valuable blue diamond to ever come to auction. And, it's a recent discovery. The more than 15-carat De .
NEW YORK (Reuters) - It's the largest and most valuable blue diamond to ever come to auction. And, it's a recent discovery. The more than 15-carat De .
Manufacturer Diacore has purchased a rough pink diamond weighing 32.32 carats for $13.8 million.The stone originated from Petra Diamonds’ Williamson mine in Tanzania, Diacore said last week. It was among the goods Petra offered at its first tender of Williamson rough since the resumption of.