Over the years we have presented technical papers in 35 countries and carried out research on Various Gemstones.


Dr. Jayshree Panjikar represented India at the International Geological Congress in Australia in 2012 and presented technical paper on 'Alexandrite of Indian Origin' along with Mr. Aatish Panjikar. Al;exandrites from three Indian states were discussed : Chhatisgarh, Odisha and Andhra Pradesh. UV-Vis-NIR, FTIR, Laser Raman Spectroscopy, LIBS and EDXRF were used and the characteristic microscopic inclusions were investigated to categorize the alexandrite. Although Alexandrite from the three different states of India, viz. Chhatisgarh, Odisha and Andhra Pradesh, are separated from each other by hundreds of kilometers, they are found in the similar geological rock type the Khondalite-garnet sillimanite gneiss and garnet biotite gneiss. Inclusion study and the similarity in some of the properties indicate that these different locality Alexandrite may have been emplaced at a similar time in the geological history. Fluid inclusion studies would throw light on the exact temperature pressure conditions. Based on the data collected and inclusions investigated it is predicted that  there is large possibility of finding many more alexandrite deposits in these regions as well as between the localities where presently alexandrite and chrysoberyl are being found.


PANGEMTECH- Panjikar Gem Research & Tech Institute presented technical papers at the Research  Conferences organised by the the Gemmological Institute of Thailand. GIT2006, GIT2008, GIT2010, GIT2014 were some of the conferences Pangemtech was also one of the Research Paper Reviewers.


PANGEMTECH- Panjikar Gem Research & Tech Institute has regularly presented technical papers on Diamonds from 2009. The photograph is from 2017 De Beers Diamond Conference the paper was on "An investigation into the morphology of HPHT grown synthetic diamonds". 

Every year in the month of July for the last  70 years delegates from various Universities likes Oxford, Cambridge, Cardiff, Wales, Warwick, Manchester, Bristol, Glasgow, Newcastle, Harvard, Alberta, Melbourne, Michigan, Jerusalem, Uppsala as well as from institutions like DTC Research Center, Element Six, HRD Antwerp, GIA New York, GIA Carlsbad, SSEF Switzerland,   Institut Max von Laue, France; Max Plank Institute, Germany, Nuclear Physics Institute, Czec Republic, Institute of Material Research Belgium, Kavli Institute of Nanoscience, Delft, the Netherlands, National Research Council of Canada and Research Departments of companies like Sumitomo, Japan and Hewlett-Packard, USA come to attend the De Beers Diamond Conference in the United Kingdom.

PANGEMTECH- Panjikar Gem Research & Tech Institute in the World Scenario of Gemmology

From 1993 we have regularly delivered Technical Papers at the International Gemmological Conferences (IGC) in Thailand (1995), Germany(1997), Spain (2001), China (2004), Russia (2007),Tanzania (2009), Switzerland (2011), Vietnam (2013), Lithuania (2015), Namibia(2017), France(2019) etc.

In 1999 the International Gemmological Conference was organised by Dr. Jayshree Panjikar in Goa, India.

Since 2009 Dr. Jayshree Panjikar is the Executive General Secretary of the Executive Committee of the International Gemmological Conference..

contact us


Pangem Enterprises and Pangem Testing Laboratory
Office No . 102 First Floor , Govind Niwas, Near Modi Ganapati Temple, Behind Saraswat Bank, Narayan Peth, Pune, Maharashtra 411030
 Call: +919850979736

Pangemtech & Pangem Testing Laboratory
Apartment Number 10, Building number 1, Sangeeta Apartments, Tadiwala Rd, behind Panchratna Hotel, Sangamvadi, Pune, Maharashtra 411001
Tel: 020 26059359



Your email address will not be published. Required fields are marked *