Policies & IssuesJul 22, 2026
Trump to Put 50% Tariff on Canadian Goods The higher tax is set to go into effect in August and will apply to loose polished diamonds as well as precious and base metals jewelry.
Lab-GrownAug 27, 2020
GIA Now Analyzing Fancy-Shaped Melee
It’s an expansion of the service GIA launched in 2016 to address concerns about lab-grown and treated diamonds being mixed into parcels of melee.
An image of a sealed bag of diamond melee examined by GIA through its Melee Analysis Service. Launched in 2016 for round diamonds, the service has been expanded to fancy shapes. (Photo © GIA)
New York—The Gemological Institute of America is expanding its now four-year-old Melee Analysis Service to include small fancy-shaped diamonds.
GIA introduced the automated system in 2016 to address then-growing concerns in the industry about lab-grown and treated diamonds being mixed in with natural diamonds in parcels of melee.
When launched, the system was available only for round diamonds, but GIA announced last week it was expanding the service to include fancy-shaped diamonds.
GIA Melee Analysis Service separates natural diamonds from lab-grown and potentially HPHT-treated natural diamonds along with identifying diamond simulants, i.e., CZ or moissanite.
Screened round melee also can be sorted by color range and size range for an additional fee, though this service is not available for fancy-shaped diamonds.
Once sorted, the melee—both round and fancy shapes—is sealed in secure packaging and returned.
For more information, visit the GIA’s website.
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