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HomeIGC 2025Spinel from Sri Lanka – An update
17. Nov
IGC 2025

Spinel from Sri Lanka – An update

Gamini Zoysa, Dietmar Schwarz, Arunas Kleismantas

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Other Gemstones
17. Nov
IGC 2025
Gemological Characteristics of New Transparent Brown Sapphire

A newly observed variety of faceted transparent brown sapphire has recently entered the gem market,

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Laurent Cartier
17. Nov
IGC 2025
The Importance and Methodology of Undertaking a Literature Search for Gemmological Research and Article Publishing

Performing a literature search is a very important—but often neglected—part of doing gemmologica

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Elodie
17. Nov
IGC 2025
Advancing Fei Cui Origin Authentication: A comparison of green fei cui from Myanmar, Guatemala, Italy and Russia

In recent years, an increasing number of sources of fei cui, such as Guatemala, Italy and Russia, ha

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Elodie

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