Research that transforms and inspires

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For decades, GIA has been on the cutting edge of gemological research, analyzing data on gems and their characteristics. This effort becomes more challenging each year, as new gem sources emerge and new treatment processes and synthetic materials come onto the market.

Recent Findings

Natural blister in the form of a pearlfish.
Natural Blister from Entombment of a Pearlfish Within a Pinctada Maxima Shell

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Recently submitted 3.52 ct. CVD-grown diamond.
Five CVD Synthetic Diamonds Greater Than Three Carats

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Cat's-eye demantoid with well-aligned horsetail inclusions.
Cat's-Eye Demantoid and Brown Andradite with Horsetail Inclusions

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