News & Articles

Gem materials and in front of rare books.

Top 10 Digital Reads from the GIA Library

GIA Library Staff, April 2, 2020

GIA Researchers Evaluate ‘Light Performance’ and Diamond Cut

Ilene Reinitz, Al Gilbertson and Ronnie Guerts, March 12, 2020

A large yellow cushion cut diamond pendant is partially framed with marquis cut diamonds and hangs from a necklace of mixed cut diamonds.

Yellow Gemstones: Can You Identify Them?

Sharon Bohannon, March 9, 2020

A variety of gemstones come in shades of yellow, from diamonds to citrine to garnets.

Man stands in front of an audience giving a lecture – projection screen with image to his right.

Not All That Glitters is Gold — Sometimes it is Mozambican Rubies

Phoebe Shang, March 9, 2020

Color Classification and Stability of Queen Conch Pearls

Akira Hyatt, Joyce Wing Yan Ho, Emiko Yazawa, Chunhui Zhou, March 4, 2020

Color stability experiments show that the color of Queen conch shell and pearls may shift in hue and/or saturation under X-ray radiation or short-wave UV radiation.

Coronavirus May Cut Chinese Demand, Diamond Companies See Better Times

Russell Shor, February 10, 2020

Economic impact of the coronavirus. Plus, an update on the diamond market and gold jewelry.

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