DiamondBuzz
WFDB Applauds Luanda Accord Backing Natural Diamond Promotion
The World Federation of Diamond Bourses (WFDB) has expressed strong support for the Luanda Accord, an agreement among major diamond-producing nations and trading hubs to bolster the global promotion of natural diamonds. Under the accord, all signatories will contribute 1% of their annual rough diamond revenue to the Natural Diamond Council’s marketing efforts.
Signed in Luanda, Angola, the accord brings together key industry players, including Botswana, Angola, Namibia, South Africa, Sierra Leone, the DRC, and organizations such as the Antwerp World Diamond Centre, Dubai Multi Commodities Centre (DMCC), India’s Gem & Jewellery Export Promotion Council (GJEPC), and the African Diamond Producers Association.
The agreement follows the WFDB Presidents’ Meeting in New York, where consensus was reached on the urgent need to unite in support of natural diamonds. Industry leaders such as Botswana President Duma Boko, Angolan Minister Diamantino Azevedo, De Beers CEO Al Cook, and DMCC Executive Chairman Ahmed Bin Sulayem were in attendance.
WFDB President Yoram Dvash commended the initiative and particularly praised signatories DMCC and GJEPC, stating, “I am very gratified to see the mobilization of the global diamond industry to promote natural diamonds. As I said at the Presidents’ Meeting, now is the time to lead with unity to protect the value and legacy of the natural diamond. United, we will remind the world why a natural diamond will always be forever.”
The WFDB also launched its own natural diamond video campaign, encouraging members to amplify the message through social media.
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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