Frequently asked questions

Does GIA grade sapphire or other coloured stones?


GIA doesn’t grade or provide quality analysis for sapphire or other coloured stones. GIA Gemological Identification Reports assess the characteristics of a stone (weight, measurements, shape, cutting style and colour), determine if it is natural or laboratory-grown, indicate detectable treatments and, at the client’s request, will issue an opinion on geographical origin, when possible.

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