GemTalks: Inside GIA’s Colored Stone Reports

Nicole Ahline will explain how the lab identifies treatment status and origin.

GIA to Launch Cut Grade for Select Fancy Shapes in 2027

Lab also rolling out new comments clarifying impact of fluorescence.

GIA Names New Chief Financial Officer and Opens Gemology Program in Chinese

Bringing more than 30 years of experience, John Cowley will succeed David Tearle.

GIA Chief Laboratory and Research Officer Tom Moses to Step Down

Gemology expert concludes nearly 50 years at the institute.

GIA Announces Buccellati Foundation Jewelry Design Award Winner

Prize goes to Catherine Aulick, a graduate of the institute’s Carlsbad school.

GIA Examines Unusual Faceted Armenite

Testing reveals inclusions that match a similar specimen from the institute’s museum.

Former GIA Governor George Rossman Dies at 81

The mineralogist and educator served in that board post from 1995 to 2007.

GIA Identifies an Atypical Saltwater Pearl

The 9-carat, white, semi-baroque bead has dents and wrinkles on the surface.

GIA Detects Fracture-Filled Diamonds in Jewelry

Three stones in submitted necklace and earrings showed signs of the clarity treatment, lab says.

GIA Examines Partially Fake Pearl Jewelry Posing as Natural

Accurate identification is challenging when it comes to finished pieces.

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