DiamondBuzz
US diamond importers can self-certify mining Source: JVC
Importers will not need to submit proof of a diamond’s country of mining when registering shipments to the US but should keep the right documentation for inspection, according to guidance the Jewelers Vigilance Committee (JVC) released last week.
In January, US Customs and Border Protection (CBP) announced a requirement to state the “country of mining” for all imports of diamonds and diamond jewelry entering the country. Earlier this month, the government agency told industry members these declarations “should be verifiable with the documentation provided with the entry.”
However, these papers will not be mandatory when filing shipments in the Automated Customs Environment (ACE) processing system, the JVC explained in a member alert last Thursday.
“We’ve been told that the additional documentation (proof of origin) isn’t going to be required by the ACE system,” Sara Yood, the JVC’s CEO and general counsel, clarified in a separate email to Rapaport News on Tuesday. “An importer can choose to upload it with an entry, or they can leave it out but will need to provide it when shipments are spot-checked at customs.”
CBP continues to require self-certification statements for applicable diamond imports to verify they do not contain Russian inputs, the legal guidance group said in the member alert. The new rules, which will go into effect in April, apply to loose diamonds and finished jewelry, but not to lab-grown diamonds, the JVC explained. CBP has “acknowledged” certain provisions for “grandfathered” goods — diamonds that predate sanctions on Russia — but has not confirmed how entry will work, the committee pointed out.
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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