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

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 …

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

An IGI Diamond Report is your foundation for informed and confident diamond ownership. Our reports, renowned for their accuracy, deliver expert analysis supported by detailed diamond certification, …

IGI was the first laboratory to develop reports for finished jewelry and continues to lead the field today. More complex than the analysis of loose gemstones, IGI’s expertise in the analysis and …

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.

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

IGI operates 31 laboratories around the world grading finished jewelry, natural diamonds, lab-grown diamonds and gemstones, along with 18 schools of gemology graduating thousands of students …

IGI is India’s largest gemological grading organisation and the world’s second-largest certification laboratory. For over fifty years, IGI has built a legacy as one of the most reputable and recognised …