DiamondBuzz
Angola’s Endiama and Sodiam Join Natural Diamond Council with $8M Pledge to Boost Global Campaign
Angola’s state-owned diamond giants, ENDIAMA E.P. and SODIAM E.P., have officially announced their joint membership in the Natural Diamond Council (NDC), effective July 1, 2025. Their entry comes with a significant $8 million funding commitment aimed at supporting the NDC’s global marketing efforts during the critical second half of the year.
This move underscores Angola’s expanding influence in the international diamond trade. As the world’s third-largest producer of natural diamonds and a key region for future exploration, Angola is positioning itself as a responsible and proactive leader in promoting the value and integrity of natural diamonds.
“Promoting the values and socioeconomic benefits of our diamond industry is a national priority,” said Diamantino Azevedo, Angola’s Minister of Mineral Resources, Oil and Gas. “By joining the Natural Diamond Council, Endiama and Sodiam are reinforcing our long-term commitment to transparency, sustainability, and global consumer engagement.”
David Kellie, CEO of the NDC, welcomed the partnership, noting, “Endiama and Sodiam’s participation comes at a transformative moment for the industry. Their support will help amplify our message about the natural diamond’s rarity, authenticity, and lasting positive impact.”
Richa Singh, Managing Director of NDC India & Middle East, added, “Diamonds represent deep emotional and cultural significance. With Endiama and Sodiam on board, we are better positioned to educate consumers and share the inspiring stories behind each natural diamond.”
De Beers, a founding NDC member, responded to Angola’s $8 million contribution by pledging a matching amount for 2025, further strengthening the Council’s ability to run impactful global campaigns.
With their membership, Endiama and Sodiam join a prestigious lineup of NDC contributors, including De Beers, Rio Tinto, Petra Diamonds, Murowa, and the Okavango Diamond Company. Together, they aim to promote the enduring value, ethical sourcing, and community benefits of natural diamonds on the global stage.
DiamondBuzz
CVD Synthetic Fashioned To Imitate A Rough Natural Diamond
The Near-Colorless Stone Is Believed To Be The First Time Creators Of A Synthetic Chemical Vapor Deposition (CVD) Diamond Have Shaped It To Resemble A Rough Diamond
The 6.87-carat near-colorless CVD diamond was shaped to resemble a natural rough octahedral crystal but showed distinct synthetic features under microscopic and spectroscopic analysis.GIA’s tests confirmed the stone’s synthetic origin, noting polishing marks, facet junction roughness, and luminescence patterns inconsistent with natural diamonds.
No evidence currently suggests widespread substitution of synthetics for rough natural diamonds, but existing detection tools could be adapted if such cases increase.
The near-colorless stone is believed to be the first time creators of a synthetic chemical vapor deposition (CVD) diamond have shaped it to resemble a rough diamond, according to an article in the spring issue of the institute’s Gems & Gemology quarterly journal.
Upon investigation with the use of raman spectroscopy, the results confirmed that the material was a diamond, with its near-octahedral shape similar to that of a natural rough crystal. Further analysis showed that it was not a true octahedron, as only one set of opposing faces was parallel. Microscopic observation under differential interference contrast revealed extremely flat faces marked mainly by parallel polishing lines, unlike the growth steps and trigons typically seen on natural octahedral faces. The facet junctions were extremely rough, possibly due to measures taken to improve the color, after which the main faces appear to have been repolished, the institute explained.
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