DiamondBuzz
G7 traceability mechanism implementation delayed for a second time
Plans to support diamond sanctions on Russia with a blockchain-backed traceability mechanism have been delayed for a second time.The G7 and EU nations originally intended to implement the scheme on 1 September 2024, but in June 2024 it was put back to March 2025. And last week it was delayed again, until 1 January 2026.
The announcement was made last week in the 16th sanctions package against Russia, marking the third anniversary of its invasion of Ukraine.The postponement has been widely welcomed within the industry, where many feel the introduction would otherwise be rushed and poorly planned.
The Antwerp World Diamond Centre (AWDC) said an additional 10 months would give diamond companies time to prepare properly. The new sanctions package also requires diamond traders importing rough diamonds of mixed origin to present a Kimberley Process certificate listing all countries of origin “At this stage, there is still considerable uncertainty about how the traceability system will function and how it will be governed, and the G7 must first clarify these aspects,” said CEO Karen Rentmeesters
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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