Research & Insights

Far East Gem Research Institute · Singapore

Research & Insights

Advancing gemological understanding through published research, laboratory observations and the exchange of knowledge.

Explore selected publications and conference contributions by FEGRI researchers and collaborators, together with historical research by our founder, Tay Thye Sun.

Research · Laboratory · Education

Knowledge grows through examination.

Research develops gemological understanding. Laboratory examination applies that knowledge to real specimens and raises questions for further study. Education shares the resulting knowledge with students, professionals and the wider gem and jewellery community.

Our research history includes gemstones, diamonds, jade, pearls and treatments. The records below identify each contribution’s authors, year and original source.

Selected contributions

A growing record of gemological research

2025 · Conference contribution

Diamonds from Than Lwin River near Mong Hsu, Myanmar

Authors: Hui Ying Loke, Lee Cheang Hao Timothy, Htay Nyunt, Tin Nyunt Thet, Sellou Linda, Thye Sun Tay

38th International Gemmological Conference, Athens, Greece

Microscopy and spectroscopy examined 16 rough diamonds reported from the Than Lwin River area. The study documents crystal features, natural radiation exposure and deformation, while recognising the limits of conclusions about geographic origin.

2025 · Conference contribution

Amber from the Thanbaya Gaing Coal Mine, Minbu Township, Magwe Region, Myanmar

Authors: Tin Nyunt Thet, Thye Sun Tay, Lwin Soe, Lock Cheyenne, Hui Ying Loke

38th International Gemmological Conference, Athens, Greece

Gemmological testing and infrared spectroscopy characterise resin specimens from a Myanmar coal mine. The contribution discusses their fluorescence and maturation characteristics, and notes that more specimens are needed for further study.

2023 · Conference contribution

Analysis of Myanmar golden-lipped cultured pearls using X-ray radiography, EDXRF, UV-Vis-NIR and Raman spectroscopy

Authors: Tay Thye Sun, Michael S. Krzemnicki, Gina Brombach, Thet Tin Nyunt, Myo Lwin, Tay Zar Linn, Loke Hui Ying

37th International Gemmological Conference, Tokyo, Japan

Radiography and spectroscopy investigated seven cultured pearls from Myanmar. The analysis confirmed bead nucleation and natural yellow colour in the tested specimens, and documented differences in nacre thickness.

2000 · Journal feature article

Burmese Jade: The Inscrutable Gem

Authors: Richard W. Hughes, Olivier Galibert, George Bosshart, Fred Ward, Thet Oo, Mark Smith, Tay Thye Sun, George E. Harlow

Gems & Gemology, Spring 2000, Volume 36, Number 1

A co-authored study of Myanmar jadeite connects field observations with its geology, mining, evaluation, trade and treatments. It provides historical context for understanding jadeite and its journey from deposit to market.

Conference contributions and journal articles are identified separately. Historical records retain their original authorship and published affiliations; the 2023 pearl contribution was published under the name Far East Gemmological Institute.

Explore our earlier research

The research bibliography maintained by Far East Gem Lab covers earlier publications and specialist topics. It includes Tay Thye Sun’s research before FEGRI’s establishment in 1988 as well as later contributions.

Connect with FEGRI

Discuss a research question, a potential collaboration or the relationship between laboratory work and professional education.

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