DiamondBuzz
AWDC unveils gumball machine dispensing 5-euro LGDs in Antwerp
A gumball machine dispensing five-euro lab grown diamonds was unveiled on 12 June as part of a two-pronged campaign, highlighting Antwerp’s history as a diamond hub – and the low value of lab growns. Lab growns account for just 0.6 per cent of the diamonds traded in Antwerp, which has been a global hub for almost 580 years.
The cheeky stunt, taking place today and tomorrow at the city’s Stadsfeestzaal shopping mall, is part of the new We Protect a Legacy initiative by the Antwerp World Diamond Centre (AWDC).
The campaign highlights the core differences between natural and lab growns, which remain unclear to many consumers, leaving room for confusion — and in some cases, deliberate misinformation. the market price of synthetic diamonds has collapsed in recent months, losing up to 95 per cent of their value over the past seven years, while natural diamonds are becoming increasingly scarce
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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