Tag: GSI

GSI Diamond Certification-usa
Lab Grown Diamond

Observed Lab Grown Diamonds While Examining Diamonds

A parcel of a few diamonds came to GSI for testing. Size of diamonds ranges from 0.40 – 0.70 Cts. Diamonds graded as high clarity and near colorless. Visual examination was difficult to identify because natural diamond and laboratory grown...

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GSI Opens New Lab in Botswana

Gemological Science International (GSI), one of the largest independently owned gemological laboratories in the world, announced today that it opened its 9th lab in Gaborone, Botswana. “After decades of just mining rough diamonds, Botswana's capital Gaborone now cuts, polishes and...

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Oyester Pearl

Pearl Cultivation from Marine Water

Personal Experience of: MRS. SEEMA A. ATHAVALE: GSI - CHIEF GEMOLOGIST M.Sc., D.G. FGA (UK), Marine water pearl culture technician, Tuticorin (CMFRI), Tamil Nadu, India. I was carrying out analyses and research work for the degree of Master of Science in...

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GSI Inaugurates Lab in Surat

        Gemological Science International (GSI) a full-service, high-tech lab designed specifically to meet the rapidly changing needs of the jewelry industry, inaugurated its new laboratory in Surat at the Varacha Road, Diamond Complex on 15th December 2014....

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GSI Hosted Workshop at Kerala Gem & Jewellery Show 2014, Kerala

Mumbai, 27th November, 2014 - Gemological Science International (GSI) a full-service, high-tech lab designed specifically to meet the rapidly changing needs of the jewelry industry, participates at the Kerala Gems and Jewellery Show (KGJS), 2014. At this premier industry platform,...

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GSI team contributes in Joy Box

GSI Partners With Indian Charity Each One Teach One

Gemological Science International (GSI) has launched the Joy Box campaign in association with Each One Teach One (EOTO), a charitable foundation aimed at creating opportunities for underprivileged children in urban and rural India. The Joy Box campaign will provide boxes...

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What is the Kimberley Process?

"The Kimberley Process (KP) is a joint governments, industry and civil society initiative to stem the flow of conflict diamonds – rough diamonds used by rebel movements to finance wars against legitimate governments." -from the KP website In the late 1990s,...

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GSI’s Third Annual Clean Streets Campaign, MUMBAI, April 21, 2014

The Clean Streets campaign that started in 2012, is an anti-littering initiative of GSI’s (Gemological Science International) VP and Bandraite Neeta Shah. Once again the center of the campaign was Turner Road in Bandra. The aim is to make Mumbai’s...

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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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