Research Article Search Results
Trigon Party on a Diamond
A cluster of trigons is observed on the surface of a 1.01 ct natural diamond.
An Exceptional Cat’s-Eye Emerald
A double cabochon cat’s-eye emerald conjures fond memories for an estate dealer in Tucson.
Mineralogy and Geochemistry of Turquoise from Tianhu East, Xinjiang, China
Examines turquoise from northern China and identifies a geographic origin indicator to distinguish it from other Chinese sources.
The Lengthy Vertical Journey of Superdeep Diamonds
Explores the journey of superdeep diamonds to the earth’s surface.
Nanoscale Techniques for Characterizing Gemstone Coatings: A Case Study on Synthetic Moissanite
Provides a basis for analyzing colored coatings on a variety of polished gemstones.
“Ice Jade” from Guatemala
Characterizes a translucent variety of jadeite jade from the Morales mine in Guatemala.
Beyond Beauty: A Garnet Necklace Decoded
A platinum necklace featuring 28 rare garnets won two 2023 AGTA Spectrum Awards.
Seventh Annual Gianmaria Buccellati Foundation Award Winner
A graduate of GIA’s Jewelry Design program in Taiwan is the recipient of the 2023 Gianmaria Buccellati Foundation Award.
CVD with “Ancient Text” Clouds
A CVD-grown diamond exhibits an interesting clarity characteristic.
Suspended Crystal in Red Spinel
A crystal inclusion in red spinel displays rainbow colors under fiber-optic lighting.
