BrankoGems
Gemmological Research Industries Inc. (GRI) is a consulting company that specializes in the identification, grading and evaluation of gem quality rough, polished and mounted diamonds, gems, research and training of all segments of jewellery industry.
Headed by renowned research gemologist Branko Deljanin, the aim of GRI is to set a new standard in service and knowledge transfer to the diamond and gem industry.
Kraljica američkih dragulja – Montana safir
The Queen of American Gems – Montana Sapphire
Beyond Fluorescence for diamond origin ID
Comparison of portable instruments for screening and ID of lab-grown diamonds
Case Study of Diamond Samples at Canadian Gemological Laboratory and Analytical Gemology and Jewelry
Laboratory Grown Diamonds – Screening Challenges - Guy Borenstein
The Importance of Gemstone Testing - Dr Lore Kiefert
Comparison of Portable instruments for screening and ID of Laboratory grown Diamonds
APHT and HPHT treatments of natural and of Laboratory-grown Diamonds - Dusan Simic
Provenance and Grading of Pink Diamonds - Branko Deljanin
101 Diamonds – an Interactive Electronic Data Handbook - Dušan Simić
The Retail Gemologist – Why Diamond Science Matters in Retail Now More Than Ever - Randall Lightfoot
Interview with Dusan Simic on a new movie ‘Nothing Lasts Forever’
BRANKOGEMS activities at Tucson Gem and Mineral Show 2022
How Gemological Equipment for Diamond Origin ID works
From CVD factory to Market Webinar
Cutting of CVD diamonds at Dm Gems Group, India
Round Table - “Can Lab-Grown and Natural Diamonds Co-Exist?”
BrankoGems presents "The Diamond Roundtable"
CVD Diamond Production: an Overview
Past, Present and Future of Laboratory-grown Diamonds