DiamondBuzz
Angola calls for African unity to revive natural diamond market
Angola’s Minister of Mineral Resources, Diamantino Azevedo, urged African diamond-producing nations to coordinate strategies and launch unified global campaigns to restore natural diamond prices and market position.
Speaking at a ministerial roundtable in Luanda, Azevedo emphasized that consumers should understand that buying natural diamonds supports “real human transformation” across Africa, funding schools, hospitals, and infrastructure development.
Key Points:
- Africa produces over 65% of global rough diamonds, led by Angola, Botswana, South Africa, Namibia, DRC, and Sierra Leone
- Angola produced 14+ million carats in 2024 (96% of target) and inaugurated the massive Luele mine
- The country is expanding the Saurimo Diamond Development Pole with 19 new factories and establishing the Angola Diamond Exchange
- Angola is preparing to formally join the Natural Diamond Council
The one-day summit brought together mineral resource ministers from major African diamond producers to address industry challenges and promote the positive impact of natural diamonds on producing communities.
Azevedo stressed that true wealth lies not in carats extracted but in the value we retain, the future we build, and the dignity we preserve.
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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