To be the most respected and globally recognized authority in gemstone authentication and grading.
At GHC, we combine advanced gemological expertise with international standards to deliver accurate, reliable, and easily verifiable gemstone reports — building trust with every stone we certify.
Certified professionals with decades of experience ensuring every evaluation is accurate and unbiased.
We follow internationally recognized grading systems for reliability you can trust anywhere in the world.
Scan the QR code or enter your certificate number to confirm authenticity in seconds.
Every certificate includes high-resolution images, measurements, and expert remarks for complete transparency.
GHC is a trusted name in gemstone certification, delivering precise, transparent, and verifiable reports that empower jewelers, traders, and customers to make confident decisions. With cutting-edge technology and expert gemologists, we ensure every stone we certify meets global standards of authenticity and quality.
To be the most respected and globally recognized authority in gemstone authentication and grading.
To provide accurate and trustworthy gemstone certification that builds lasting confidence in the jewellery trade.
Certificates Issued
Winning Awards
Partnered Jewellers
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$240,00
$240,00
$240,00
From master jewellers in India to collectors in the United States, our certification is recognized and respected across the globe. See how GHC has earned the trust of clients everywhere.
I’ve been in the gemstone trade for over 20 years, and GHC’s reports are by far the most detailed and reliable I’ve seen. Their QR code verification has made it effortless for my customers to trust what they’re buying.
I purchased a sapphire from overseas and wanted to be absolutely sure of its authenticity. GHC’s certification process was quick, transparent, and professional. The report gave me complete peace of mind.
As a jeweller, my reputation depends on the authenticity of my stones. GHC’s hallmark has become a seal of trust for my clients. Their reports are as beautiful as the gems they certify. GHC it is for Gemstone Certification.
Global Hallmark of Trust in Gemstone Certification. Setting international standards with precision, integrity, and expertise.
We’re here to assist you with all your gemstone certification needs during our working hours.
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