LONDON (Reuters) – Petra Diamonds sold a 507-carat diamond for $35.3 million on Friday, breaking a record as the highest price ever paid for a rough diamond.
Analysts had estimated the value of the stone, one of the 20 biggest high-quality rough diamonds, at around $25 million.
"It is fitting that the Cullinan Heritage should achieve a sale price of $35.3 million, the highest sale price on record ever achieved for a rough diamond,… Continue