Pearl Reports

GIA’s Pearl Reports provide consumers and retailers with a detailed document that outlines the specific attributes of pearls and pearl jewelry, including weight, measurements, growth environment (saltwater or freshwater), mollusk type and the presence of any detectable treatments.

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Lab Services


Conducting Gem Research

Since 1931, gemological research has been one of GIA’s core activities.


Gems & Gemology

Gems & Gemology publishes the latest research on diamonds and colored stones.


Become a Pearls Professional