About IGI

Serving the industry with diamond, gem and jewelry grading, education and appraisals since 1975

About IGI

One of the World’s Largest Independent Grading and Accreditation Services Providers

Grading and Certification

IGI grades diamonds, gemstones and jewelry in more locations around the world than any other gemological organization

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Accreditation

IGI has received ISO 17025 accreditation for both natural and lab grown diamond grading.

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Education

IGI’s Schools of Gemology are unrivaled in diversity, reach, and practicality with courses offered in-person and online via eLearning

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ESG

IGI prioritizes ESG for sustainability: “We integrate ESG into our operations to minimize impact and promote social responsibility.”

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World Map

IGI’s supreme position in the gemological world is no coincidence. It is the result of continuous research, support, and synergy with professionals and consumers alike. This dedication is reflected by worldwide trust for IGI certified diamonds and IGI certified gemstones, which uphold the highest industry standards.

IGI Seal

IGI Values

IGI’s value system is centered on objectivity, accuracy, consistency, and impartiality, ensuring that each diamond is evaluated according to strict industry standards and criteria without bias or influence.

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Authenticity

IGI uses state of the art technologies to screen every gemstone, determining naturally mined, laboratory grown or simulant origin.

Confidence

IGI’s School of Gemology is the ultimate source for discovering the breathtaking world of diamonds, gemstones and jewelry.

Collaboration

IGI instructs a wider variety of courses, provides a wider array of services, and grades a wider variety of gemstones and jewelry in more locations around the world than any other gemological organization. By acting globally while thinking locally we provide customized, world-class solutions in all of the many locations we serve.

ESG

IGI believes our industry must proactively engage in human and environmental stewardship. Every business has the power to respect all-inclusive cultural and gender diversity and minimize environmental impact.

IGI

Enroll in our School of Gemology

IGI trains jewelry professionals in more places around the world than any other institute, offering an array of campus and online courses which are unrivaled in diversity and availability.

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