Trial Run Keeps Yielding Type IIa Diamonds for Lucapa

Trial Run Keeps Yielding Type IIa Diamonds for Lucapa

Perth, Western Australia–Lucapa Diamond Company Ltd. announced this week that it has recovered three more big diamonds, two of them Type IIa, from an area of its Lulo Diamond Project in Angola where mining has just begun.

Found during trial mining of the E46 alluvial terraces at Lulo, the latest three “specials” include two high-color Type IIa diamonds of 88 and 30 carats. (Specials refer to diamonds that weigh more than 10.8 carats.)

Lucapa said that these three diamonds add to the 10 specials already found at E46 since it started mining there last month. The mining company added that more than 30 percent of rough diamonds that are larger than one carat recovered from the site are turning out to be Type IIa diamonds.

Type IIas are diamonds that are void of nitrogen and boron; only 2 percent of the world’s mined diamonds are classified as Type IIa.

The largest Type IIa find at Lulo so far has been the 404.2-carat diamond that was recovered in February.  

The mining company sold that stone, the 27th largest known diamond in the world, for $16 million, or nearly $40,000 per carat.