Tag: lab vs natural diamond

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gsi labgrown natural

Natural Diamonds: An “Intruder” in the Laboratory-Grown Supply Chain

Debbie Azar, President and Co-founder of Gemological Science International (GSI): Last May, I wrote a Memo about the need for full disclosure on grading reports issued by gemological laboratories when it comes to post-growth treatments of laboratory-grown diamonds. That has...

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Dialy Mail (2736 X 1824)


[lwptoc] By PANDORA AMORATIS FOR DAILYMAIL.COM It’s estimated that nearly 40% of engagements in the US happen between Thanksgiving and Valentine’s Day. Thinking about popping the question? Hailey Bieber said ‘Yes’ to an oval-shaped diamond set on a gold band. Julez Bryant Director...

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GSI Diamond Community Lunch in Surat

Surat, May 2015 – GSI (Gemological Science International), one of the largest independently owned gemological laboratories in the world, hosted its first ‘GSI Diamond Community Lunch’ on 14th May 2015 at The Gateway Hotel, Surat. GSI organized this exclusive luncheon...

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Where is Gemological Science International (GSI) located?

GSI is headquartered in New York, NY. It has 13 laboratories on four continents and in a number of countries: the United States, India, Dubai, Israel, Belgium, Hong Kong, and Botswana. This makes GSI one of the largest independent gemological organizations in the world.

Is there a difference between grading reports issued by different GSI laboratories?

All GSI laboratories grade using the same methods and adhere to the same standards. Every laboratory is staffed with highly trained professionals who have years of grading experience and an extensive gemological background.

What does it mean when a sales associate tells me my diamond is “GSI Certified” or is accompanied by a “GSI Certificate”?

The phrases “GSI Certificate” and “GSI Certified” are industry shorthand for GSI grading or identification reports. What this means to you is that expert gemologists and trained professionals meticulously evaluated the item. When your diamond, jewelry or gemstone is accompanied by a GSI grading report, you can be completely confident in the accuracy and objectivity of the evaluation.

Where can I find “GSI Certified Diamonds”?

GSI diamond grading and identification reports can be found in jewelry stores worldwide and online. Insist on a GSI grading report when shopping for a diamond, jewelry or gemstone.

What do I do if I lose my GSI Diamond Report?

Every GSI grading report is available on our website. Please visit gemscience.net and go to “verify your report”. Enter your GSI report number and you’ll instantly have access to a digital copy of it. You can also email us through the website to request a copy.

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