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GIA’s release of the Spring 2024 Gems & Gemology (G&G) issue marks the journal’s 90th anniversary. This issue presents research studies on colored stones and treatments, recaps the Tucson gem shows, spotlights an impressive garnet necklace and contains the annual G&G Challenge quiz. This and every issue of G&G since 1934 are available at no cost on GIA’s website at
GIA.edu/gems-gemology.

Spring 2024 G&G feature articles include:
- “Ice Jade” from Guatemala
Zhaoying Huang, Tao Chen, Jinyu Zheng, and Zebin Xu
Characterizes a translucent variety of jadeite jade from the Morales mine in Guatemala.
G&G’s regular features include:
- Lab Notes provides the latest from GIA’s laboratory, including information about cloud inclusions causing blue color in diamonds.
- Micro-World showcases the internal features in gems, including shrinkage cracks in fire agate.
- Diamond Reflections explores the journey of superdeep diamonds to the earth’s surface.
- Gem News International recaps the Tucson 2024 gem shows and much more.
- In the Spotlight “Beyond Beauty: A Garnet Necklace Decoded”
Join the conversations on GIA’s Gems & Gemology Facebook group with an online community of more than 40,000 members:
facebook.com/groups/giagemsgemology. Additional research articles are available at
GIA.edu/gia-news-research.