By Maria Mrozek, Senior Gemologist GSI One of the fascinating features which gemologists are observing in diamonds, both natural and laboratory-grown, are inclusions. Inclusions are imperfections within a diamond that are result of different events during formation of natural and...
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...
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...
[lwptoc] 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...
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...
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.
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.
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.
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.
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.
