Research Collaborations & Support to Academia

Since GIA’s founding in 1931, our mission has been to protect the public trust in gems and jewelry. Part of fulfilling this mission means conducting extensive research on gems through acquiring gem samples and conducting thorough scientific investigation on these samples through cutting-edge instruments. Our goal is to share our findings widely, including with the jewelry trade, scientific and academic communities and the general public.

The following list showcases recent articles authored or coauthored by GIA scientists that have appeared in professional publications. Coauthored articles were written in collaboration with researchers at universities or other institutions. These diverse articles represent pressing topics that our scientists are currently investigating, including knowledge that addresses current gemological challenges.

All Gems & Gemology articles are available for download on the GIA website. Articles from other journals are often available in university libraries or from the journal publishers. At GIA, we are privileged to have access to a large range and quantity of gems often unavailable to other scientists. We are thrilled to be able to share the insight obtained from these gems with fellow scientists and the public at large.

Two Assembled Pearls

Natural pearl cores are used to simulate the appearance of natural pearl growth in two assembled pearls mounted in a pair of earrings.

Read more

External Morphology and Internal Zonal Structure of Macle Diamond

Investigates the morphological changes of macle diamonds during the growth process by exploring their three-dimensional internal zonal structure.

Read more

Fracture-Filled Diamonds Detected in Mounted Jewelry

The Mumbai laboratory reports on a jewelry submission containing fracture-filled diamonds.

Read more

An Unconventional Bead Cultured Saltwater Pearl

A semi-baroque saltwater nacreous pearl presents identification challenges in the Mumbai laboratory.

Read more

“Bamboo Forest” in Colombian Emerald

Dense tube inclusions in emerald create a scene reminiscent of a tranquil bamboo forest.

Read more

Blooming Bouquet: Thin Films in Russian Emerald

Colorful thin film inclusions are captured within a Russian emerald carving.

Read more

Fingerprint Pattern on a “Hammered” Pearl’s Surface

Spiral patterns of nacre platelets observed on the surface of a non-bead cultured pearl are reminiscent of fingerprints.

Read more

New Edition of Tillander’s Diamond Cuts in Historic Jewellery 1381–1910

An updated edition of Herbert Tillander’s book is now available.

Read more

Assembled Black Imitation Pearl

An undrilled black bead is identified as an assembled imitation pearl made from shell fragments.

Read more

Sea Urchin–Like 3D Radial Fissures in a Heated Mong Hsu Ruby

Examination of a 1.34 ct ruby reveals a unique inclusion formed during heat treatment.

Read more

Dark Red Tantalite Crystal in Greenish Blue Sapphire

The blunt termination of a red manganotantalite inclusion displays a striking contrast against a greenish blue sapphire.

Read more

“Melon” Pearl

A non-nacreous pearl with a netted surface resembles the exterior of a melon.

Read more

PreviousPage 2 of 63Next

GIA Knowledge Sessions

GIA Knowledge Sessions graphic with quote: ‘Since 1931, we have shared everything we learned with you,” Richard T. Liddicoat
GIA Knowledge Sessions are a series of talks and seminars that engage gem and jewelry lovers about today’s most diverse and pressing issues in gemology.
LEARN MORE

You Might Also Like

YMAL AJP
AJP®: New 5-Day Program Offered Worldwide
Learn About NextGem
GIA NextGem™ Diamond Training for Retail
Explore GIA Laboratory Promotional Offers
Explore GIA Laboratory Promotional Offers
Shop the GIA Store
Shop the GIA Store