Angola’s Sodiam Launches Online Auction of 74 Special Rough Diamonds in Luanda. Sodiam, Angola’s National Diamond Trading Company, has announced a new auction of special rough diamonds, with 74 stones to be offered through an electronic bidding process. Viewing sessions will take place from February 23 to March 3, 2026, at Sodiam’s headquarters in Luanda. The online bidding process will close on March 4 at 10:00 a.m. local time. The auction is being organized in
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