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Grunberger Diamonds USA

Ideal Cut Melee Grunberger Diamonds USA

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Transparency & Traceability


TRANSPARENCY & TRACEABILITY

To eliminate the risk of getting synthetic diamonds, we use state-of-the-art synthetic diamond detection machines, such as the GLIS-3000 and the M+ Screen.

M+SCREEN

The M-Screen+ automatically feeds,
screens, and sorts round, brilliant diamonds, and then automatically singles out stones that might be synthetic.

TRANSPARENCY & TRACEABILITY

GLIS-3000

Gem Luminescence Illuminating System (GLIS) analyzes diamond
fluorescence and phosphorescence images after ultraviolet
irradiation. It helps distinguish and locate synthetic stones by
examining differences between the fluorescence and
phosphorescence of natural and synthetic diamonds.


TRANSPARENCY & TRACEABILITY

ASSOCIATED ORGANIZATIONS

American Gem Society (AGS)
Antwerp World Diamond Centre (AWDC)
Belgian-Luxembourg Chamber of Commerce in Japan
Diamond Antwerp Bourse
Diamond Manufacturers & Importers of America (DMIA)
Gemological Institute of America (GIA)
Jewelers Board of Trade (JBT)
Manufacturing Jewelers and Suppliers of America (MJSA)
Responsible Jewellery Council (RJC) Certified Member

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Grunberger Diamonds USA

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