News & Articles

2018: A Good Year for Finding Mega-Diamonds

Russell Shor, May 21, 2018

The three diamond mining companies that specialize in digging up large stones have found some really big ones during the first quarter of the year.

A Glittering Garden: A Menagerie of Designs from Mother Nature

Sharon Bohannon, May 21, 2018

Delightful garden creatures and flowers are favorite subjects that transform beautifully into Victorian, Art Nouveau and modern jewelry designs.

Spring 2018 G&G: Color Origin of Green Diamonds, Iridescence in Hematite, and the Outlook from Tucson

Jennifer-Lynn Archuleta, May 11, 2018

Jennifer-Lynn Archuleta is the editor of Gems & Gemology.

Gemstone ‘Paintings’ Tell Story of a Master Craftsman, Gem and Jewelry Mentor

Jaime Kautsky, April 27, 2018

A jeweler who quietly built a circle of inspiration and influence lives on in generations of GIA-educated jewelers and gemologists.

Gemologist Aims to Pique World’s Curiosity in Giant Crystals

Kristin A. Aldridge, April 27, 2018

‘Adventure seeker’ crawls through underground caves to reach and research giant selenite crystals – then shares her knowledge with the world.

Non-Bead-Cultured Pearls from Pinctada margaritifera

Nanthaporn Nilpetploy, Kwanreun Lawanwong, and Promlikit Kessrapong
GIA, Bangkok, April 27, 2018

A new report from GIA's Bangkok laboratory examines a set of 120 NBC samples stated to be of "Tahitian" origin.

Gems & Gemology