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The market is seeing a spate of inexperienced diamonds getting back from grading labs as handled, Thomas Hainschwang, cofounder of GGTL Laboratories, advised the Rapaport Diamond Podcast.
“Fairly a [lot] of stones which were licensed as pure [color] within the not-too-far-away previous have been recertified by the identical lab lately and got here again as not pure anymore,” the knowledgeable in coloured diamonds mentioned. “They mainly modified from a pure [color] origin to ‘undetermined’ and even handled, which has created fairly a little bit of unhappiness out there.”
It’s unclear why these statuses are altering, mentioned Hainschwang, who declined to call the lab in query. The Gemological Institute of America (GIA), which has a number one place on this section, declined to remark to Rapaport Information.
Inexperienced diamonds thought to have pure shade can change into “instantly nugatory” if one thing like this occurs, in accordance with Hainschwang, whose GGTL community has branches in Geneva, Liechtenstein and Antwerp.
“If in case you have a 3-carat vivid-green-blue, that might go for in all probability almost $3 million,” he continued. “In case you get ‘handled’ for that, you’ll be able to promote it for 3,000 bucks, perhaps 5,000 bucks.”
In dialog with Rapaport Information Editor Joshua Freedman, Hainschwang additionally spoke in regards to the newest points in grading, his views on artificial diamonds, and whether or not you need to use expertise to determine the origin of a stone.
Take heed to the complete podcast right here:
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