EXA Natural Diamond Detector - Branko Gems - Gemmological Research Industries Inc.

Portable Spectrometer with “Pass” level that screen 98% of natural and “refer” 2% of natural, but “refer” 100% of Lab-grown.

ASA Newsroom » American Society of Appraisers » Page 30

Gypsum: Mineral information, data and localities.

Lectures Mediterranean Gemmological and Jewellery Conference

PDF) The World of Pink Diamonds and Identifying Them

Branko Deljanin (@brankogem) • Fotos y videos de Instagram

101 Diamonds – an Interactive Electronic Data Handbook - Dušan Simić

The New Jeweller The News you can use

Gemology World – Canadian Institute of Gemmology

2016 - Spain Mediterranean Gemmological and Jewellery Conference

HPHT and CVD Diamond Growth Processes, How Lab-Grown Diamonds are Made