Portable Spectrometer with “Pass” level that screen 98% of natural and “refer” 2% of natural, but “refer” 100% of Lab-grown.
EXA Natural Diamond Detector - Branko Gems - Gemmological Research Industries Inc.
(PDF) Luminescence spectroscopy and microscopy applied to study gem materials: a case study of C centre containing diamonds
ASA Newsroom » American Society of Appraisers » Page 30
BrankoGems
International Gemmological Research Industries - NCJV Conference - NCJV
EXA™ - MagiLABS
Gemology World – Canadian Institute of Gemmology
MagiLabs Gemological Instruments
JoG2017_35_5 LR Pages 1-50 - Flip PDF Download