Research Article Search Results

Unusual Patterns in Diamonds Composed of Dark Micro-Inclusions

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Emeralds and Beryl from Kazakhstan and Ukraine

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GIA Tests the World’s Second Largest Diamond

360-degree video of the Motswedi diamond.

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Eighth Annual Gianmaria Buccellati Foundation Award Winner

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Gems Keep Giving

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Evil Eye in a Flux-Healed Mong Hsu Ruby

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Update on Montana’s Rock Creek Sapphire

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Devitrified Glass “Pom-Poms” in Ruby

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Irreversible Photochromism in Synthetic Sapphire

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Natural Non-Nacreous Pearls from Various Marine Mollusks

The Bangkok laboratory studies 35 loose non-nacreous pearls from a wide range of marine mollusk species.

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Spiral Patterns on a Non-Nacreous Pearl

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Enormous South Sea Cultured Pearl with Filled and Partially Hollow Structure

Examination of a gigantic South Sea bead cultured pearl reveals an intriguing internal structure.

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