GIA’s 2018 Symposium: Up and Away!
Diamond Geology
Diamond Identification
Gem Characterization
General Gemology and Jewelry
Diamond Identification
Gem Localities and Formation
General Gemology and Jewelry
New Technologies and Techniques
Colored Stones and Pearls
Gem Characterization
Diamond Geology
Update on Trace-Element Chemical Characteristics of Golden Sheen Sapphire
Observation of Etched Surface Micro-Features on HPHT Synthetic Diamonds Using Laser Confocal Microscopy
Nephrite Bracelet with Filled Cavity
Green-Blue Maxixe-Type Beryl
Gemstones and Sustainable Development Knowledge Hub
Projects developed by the GemHub to benefit miners, cutters, and others involved in the gem and jewelry industry.
Separating Glass-Filled Rubies Using the DiamondView
The DiamondView instrument is able to identify glass as the filler in a pair of heart-shaped rubies.
Discovery of Color-Change Chrome Grossular Garnets from Ethiopia
The first known group of color-change gem-quality chrome grossular garnet, reportedly from Ethiopia, is examined in GIA’s Carlsbad lab.
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