22-1-2021
The International Gemological Institute (IGI) grading report for lab-grown diamond expands to carry descriptions about post-growth treatments.
Prior to the updates, the report only noted: “may include post-growth treatments to alter colour”. Currently, any CVD stones that are not definitively found to be untreated will still carry this description, while those which are found with no post-growth treatments, will indicate the growth process for untreated CVD or HPHT diamonds and specifically describes those diamonds are “as grown with no indication of post-growth treatment.”
IGI CEO Roland Lorie explained the reason behind the upgrade: “The popularity of lab-grown diamonds has heightened since IGI debuted the industry’s first [reports] 16 years ago.” “As technology advances and demand evolves, the institute will continue to do right by the consumer.”
The institute highlights that post-growth treatment information of fancy-colour lab-grown diamonds will be introduced in the near future.
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