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

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.

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 …

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.

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.

Protect your diamond’s identity with IGI’s registration and recovery services. Ensure easy retrieval and secure access to your diamond’s certification details.

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.

International Gemological Information, a division of IGI, was established in New York in 1981, as an independent source for unbiased appraisals of gems and jewelry.

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 …