Angola’s Sodiam to Hold Online Auction of 36 Specialty Diamonds in October 2025
The Angolan state-owned diamond trading company, Sodiam, has announced an electronic auction of 36 specialty diamonds, each weighing 10.80 carats or more.
The auction will be held in collaboration with TRANS ATLANTIC GEM SALES, targeting customers registered in Sodiam’s database who have expertise in trading specialty stones.
According to Sodiam’s official press release, viewing sessions for the diamonds will take place from September 30 to October 7, 2025, with the bidding process closing at 10:00 a.m. local time on October 8, 2025.
The lot includes stones from Angola’s leading diamond mining regions:
18 stones from Catoca
6 stones from Kaixepa
5 stones from Lulo
3 stones from Chitololo
2 stones from Somiluana
1 stone each from Calonda and Mussende
This auction marks Sodiam’s fifteenth rough diamond sale since 2019, with the most recent auction conducted in June 2025.
In 2024, Sodiam exported roughly 10.2 million carats of rough diamonds, generating approximately $1.48 billion in revenue.
This equated to an average price of $145 per carat, securing Angola’s position as the world’s third-largest producer of rough diamonds by value.
Sodiam’s ongoing auctions reflect its commitment to enhancing Angola’s position in the global diamond market and promoting transparency in the sale of high-value specialty stones.
