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...
Gemological Science International (GSI), one of the largest gemological organizations in the world, conducted the Diamond Essentials Course for retailer Fred Meyer Jewelers, a division of Kroger Co. (KR: NYSE). The two-day Diamond Essentials Course was held at the GSI...
Gemological Science International a leading gemological organisation in cooperation with Dagina Association held a seminar on gemstones— treatments and Identification at the heart of Mumbai at Dagina Association Hall on May 16, 2019. The seminar was dedicated solely to the...
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.