The new vessel is expected to add about 500,000 carat a year of production capacity to Debmarine Namibia, a 50/50 joint venture between De Beers and the African nation's government.
The exceptional D colour Type IIa gem was recovered in March from the company’s iconic Cullinan mine, the same that yielded the biggest diamond ever in 1905.
ASIC has for months been probing how Merlin Diamonds has loaned A$13 million of investor money to a private company, AXIS Consultants, which has long been associated with the miner's chairman and his family.