Tag: synthetic diamonds jewelry

GSI Diamond Certification-usa


Gemological Science International (GSI), one of the largest gemological organizations in the world and a leader in diamond identification and screening, recently identified synthetic white sapphire melee in jewelry. The synthetic sapphires were detected during a routine jewelry screening. GSI’s...

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GSI Laboratory Image

GSI Expands Synthetic Diamond Jewelry Testing Services to Reach Clients Worldwide

New York, NY – Gemological Science International (GSI), one of the world’s leading gemological institutions, today announced it has expanded its’ synthetic testing services for finished diamond jewelry to Hong Kong, India, New York, and Dubai. This service is offered...

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GSI Organizes an Exclusive Seminar on Managing the Challenges of Man-Made Diamonds

Myths, Facts, and Realities Gemological Science International (GSI) presented a seminar entitled 'Man-Made Diamonds - Myths and the Facts - Realities' to interested parties at the DMCC Dubai on 20th November, Monday at 9.00 a.m. The seminar was intended to...

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Gemological Science International presents – Managing the Challenge of Man-Made Diamonds at Dubai DMCC

Myths, Facts, and Realities DUBAI, UAE, November 13 — Gemological Science International (GSI) is pleased to announce that they will be presenting a seminar entitled "Man-Made Diamonds - Myths and the Facts - Realities" to interested parties at the DMCC...

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Mark Gershburg, CEO of GSI

Synthetic Diamonds: Better Understanding Will Calm Confusion, Says GSI’s Mark Gershburg

Synthetic Diamonds: Better Understanding Will Calm Confusion, Says GSI’s Mark Gershburg “A better understanding of the facts and issues surrounding synthetic diamonds will help dispel some of the needless panic and confusion. It will help the diamond industry cope more...

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Banning Synthetics in Bourses Will Only Push Them Further Underground

The need to create and keep consumer confidence is something of a buzzword in the gem and jewellery industry. Today, with small, lab-grown diamonds being mixed undisclosed with parcels of natural rough, there is a heightened sense of urgency in...

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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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