Explore IGI diamonds and gemstone certification trusted worldwide for quality & authenticity. Learn about IGI’s grading standards & global certification process.

Verify your IGI report and explore trusted diamond and gemstone certification. IGI grading reports ensure accuracy in cut, clarity, color, and authenticity

Without disassembling mounted stones or complex pieces, IGI experts perform thorough, objective analysis. IGI screens every gemstone using state of the art technologies to determine naturally …

IGI Natural Diamond Reports give an accurate assessment of a diamond’s cut, color, clarity, and carat weight according to strict international standards, supported by detailed diamond certification.

This report provides an opinion by IGI, and neither IGI’s original client nor any purchaser of the article shall rely on this report as a guarantee, appraisal, or warranty.

Discover IGI's diamond services like diamond screening, sorting, etc. that provide transparency, protection & added value for buyers & sellers through expert analysis.

For every gemstone identification report, IGI screens all component materials using state of the art technologies to determine naturally mined, laboratory grown or simulant origin.

Without disassembling heirlooms or complex pieces, IGI performs thorough, objective and expert analysis of finished jewelry items. IGI screens every gemstone using state of the art technologies to …

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Join IGI’s gemology courses & earn a gemology certificate or diploma. Explore gemstone courses, gemology studies & hands-on gem identification training to advance your career.