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HomeIGC 2025Hessonite garnet from Angul district of Odisha, India
17. Nov
IGC 2025

Hessonite garnet from Angul district of Odisha, India

Jayshree Panjikar and Aatish Panjikar
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Other Gemstones
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
An approach to understanding the factors in the emerald enhancement clarity grading system used at CDTECGemlab

Emerald is the green variety of beryl, with its distinctive color resulting from trace amounts of ch

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Elodie
17. Nov
IGC 2025
Padparadscha Sapphire & heat treatment

In 2018 the Padparadscha engagement ring of Princess Eugenie (Figure 1), the niece of the king, gave

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Laurent Cartier

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