Summer 2026 G&G Available Now
GIA Staff, October 9, 2026

An overview of the Summer 2026 Gems & Gemology content.

Book Review: The Historic Teachings of Gemcutting: 50 Antique Gemstone Designs
Nathan Renfro, October 19, 2026

Review of The Historic Teachings of Gemcutting: 50 Antique Gemstone Designs, by Justin K. Prim.

Freshwater Pearls vs. Saltwater Pearls: Understanding the Difference
 

July 20, 2026

Enumerating Diamond Cuts
James Conant

June 26, 2026

The Transformation of Diamond Cut Quality Grading: Where Are We Now?
Al Gilbertson and Ilene Reinitz

June 24, 2026

G&G In a Flash: Nature’s Diamond Sculptures
From G&G Fall 2025; article by Evan M. Smith
Phoebe Shang, March 4, 2026

G&G in a Flash: Guide to Phenomenal Gems
From G&G Summer 2025; article by Shiyun Jin et al.
Phoebe Shang, March 4, 2026

Freshwater Akoyas - A Trending Misnomer for Certain Freshwater Pearls
Phoebe Shang, January 26, 2026

Extraordinary Large Bicolor Natural Rough Diamond
Sally Eaton-Magaña, Kgotlaetsho Baatshwana, and Norma-Jean Osi, October 15, 2025

A 37.41 ct natural rough diamond with distinct pink and colorless zones is examined at GIA’s Botswana laboratory.