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HomeIGC 2025Automated Data Processing of Raman Spectra for Supporting Spinel Origin Determination
17. Nov
IGC 2025

Automated Data Processing of Raman Spectra for Supporting Spinel Origin Determination

Tasnara Sripoonjan, Montira Seneewong Na Ayutthaya, Sirinapa Saengdech, Sutas Singbamroong, Alongkot Fanka
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GemmologyOriginsSpinel
17. Nov
IGC 2025
Effects of Gamma Irradiation on Corundum: Towards a Potential Detection Method

Corundum, encompassing the highly prized ruby and sapphire varieties, stands as a cornerstone of the

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Elodie
17. Nov
IGC 2025
Shining light on “480 nm band” diamonds: Gemmological characteristics of an unusual group of diamonds with yellow and red luminescence

Fancy colour diamonds that derive their colour from nitro- gen-related defects (such as N3/N2 center

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Elodie
17. Nov
IGC 2025
Study of “amethysts” from the French Crown Jewels

Stefanos Karampelas, Eloïse Gaillou, Annabelle Herreweghe, Ugo Hennebois, Farida Maouche, Romain Bo

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Laurent Cartier

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