【New Delhi, I】Lab-grown diamonds won’t be treated differently: IGI

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Editor’s Note

This article highlights the International Gemological Institute’s commitment to applying the universal 4Cs grading standard to all diamonds, including lab-grown stones, as some industry players adopt alternate methods.

IGI Reaffirms Universal Grading Standard

New Delhi: The International Gemological Institute (IGI) has reaffirmed its commitment to applying the universal 4Cs grading system – cut, color, clarity, and carat – to all diamonds, including lab-grown ones, amid a shift by some industry players to alternate grading methods, according to a media release on Thursday.

“Since inception, IGI has remained steadfast in its mission as an independent, third-party authentication body – unbiased, and free from external influence,” the institute said in a statement. “Our commitment to transparency, integrity, and scientific accuracy has earned us the trust of consumers, manufacturers, and retailers around the world.”
Consistency Across Diamond Types

IGI, which began grading lab-grown diamonds in 2005, said it chose to apply the 4Cs to both natural and lab-grown diamonds to maintain consistency and prevent confusion.

“Every diamond we certify undergoes a rigorous 14-step grading process, carried out by expert gemologists using state-of-the-art equipment upholding accuracy, impartiality, and trust at every step,” as per a statement.

The institute added, “At IGI, we are not just grading diamonds – we are safeguarding the trust that consumers place in us.”

Global Operations and Market Position

IGI operates 31 laboratories across 10 countries and holds ISO 17025 accreditation. It is audited by the Big Four and is a member of the Responsible Jewellery Council. IGI is also the only gemological laboratory listed on a stock exchange.
The Blackstone-backed institute holds a 50% market share in India’s diamond certification space.

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⏰ Published on: July 17, 2025