Spring 2024 - Volume 60, Issue 1

All Issues

the quarterly journal of the gemological institute of america


Editorial

Gems & Gemology Turns 90!

Duncan Pay, Editor-in-Chief


An overview of the Spring 2024 Gems & Gemology content.
 

Read More

Articles (4)

View All Articles In This Issue

Regular Features

Lab Notes

Lab Notes

The latest advances and findings from GIA laboratories.

View All (13)
Spring 2024 Micro-World Banner

Micro-World

An in-depth look at the hidden world of gem inclusions.

View All (15)
Gem News

Gem News International

Global coverage of gem sources, notable new gem materials, and recent industry developments.

View All (32)
Diamond Reflections

Diamond Reflections

Examines topics related to the natural formation of diamond.

View All (1)
Figure 3. The 18K gold half link features a QR code that leads to a website with details about the garnets and the necklace’s creation. Photo by Robert Weldon; courtesy of Mary van der Aa Fine Jewels and Tucson Todd’s Gems.

In the Spotlight

A platinum necklace featuring 28 rare garnets won two 2023 AGTA Spectrum Awards.

View All (1)
THE DR. EDWARD J. GÜBELIN

Most Valuable Article Awards

MVA First Place

Yellow Sapphire: Natural, Heat-Treated, Beryllium-Diffused, and Synthetic
John L. Emmett, Ungkhana Atikarnsakul, Jennifer Stone-Sundberg, and Supharart Sangsawong

MVA Third Place

Color Modification of Spinel by Nickel Diffusion: A New Treatment
Michael Jollands, Abadie Ludlam, Aaron C. Palke, Wim Vertriest, Shiyun Jin, Pamela Cevallos, Sarah Arden, Elina Myagkaya, Ulrika D’Haenens-Johannson, Vararut Weeramongkhonlert, and Ziyin Sun

Special Colors and Optical Effects of Oregon Sunstone: Absorption, Scattering, Pleochroism, and Color Zoning
Shiyun Jin, Aaron C. Palke, Nathan D. Renfro, and Ziyin Sun