GSI KNOWLEDGE CENTER – A New Revolution in Education in Surat & Mumbai

GSI Helps You Understand the 4Cs of Diamonds and More… Hosts Workshop at IIJS Signature 2013, Mumbai

Gemological Science International (GSI), a New York Head Quartered independent gemological laboratory that provides professional gemstone identification, grading, and appraisal services to the fine jewelry industry participated in the India International Jewelry Signature Show, 2013. At this premier industry platform, GSI hosted an interesting and informative workshop on Gemology for jewelers, retailers, and students on the understanding of Diamonds and diamonds Jewelry every day
on 22 – 25th February at IIJS Signature, Mumbai.

Gemological Science International, the institute that has re-engineered the processing paths for gem identification and grading resulting in higher levels of productivity and cost reduction, has very successfully conducted challenging and exciting workshops on clarity and treatments of Diamonds. The workshops conducted by experienced gemologists aimed at helping people to buy goods with a better judgment and understanding.

Mark Gershburg, CEO, Gemological Science International (GSI) said “This is our second year of hosting workshops at the IIJS and as last year we were the only international grading institute in India conducting workshops at this prestigious event. The IIJS is a great platform for the congregation of some of the best minds in the jewelry industry and our workshop is designed to answer questions that mostly go unanswered or are never thought through by a lot of us in the industry. This makes the workshop an interesting platform to address the larger issues facing the industry and it is very encouraging to see the positive response to our workshops.”

IIJS Signature Show is one of the premier jewelry exhibitions in India that is emerging as one of Asia’s best and largest too. The event displayed the latest creations in jewelry and provided a wonderful platform to exhibitors for promoting their products and brands and also directly engaging with influential buyers and key decision makers in the jewelry industry.

Neeta Shah, Vice President of India Operations further adds “So many people tell me that they would love to understand their diamonds but find it hard to. Everyone has heard of the four Cs i.e. Cut, Clarity, Carat, and Colour, but it becomes difficult for them to use this knowledge practically. Therefore, we based our workshop on answering their questions as simply and practically as possible. I was very happy with the tremendous response that we got. Last year we had visitors from ASMI, NIJD, HK Design, Nakshatra, Gili, et al. who came from various parts of the country and attended the workshop.”

The workshop covered the following in detail:

  • Clarity Characteristics – Cavity/chip and Indented Naturals
  • How to identify Types of Treatments 1 and 2 in a diamond – Internal Laser Drilling – ILD
  • The Diamond Weight estimation set in a Jewelry
  • Identification of a diamond and simulants

GSI had conducted similar workshops at IIJS 2012 in August and has received a remarkable response.


About the author

Co-founder & President at Gemological Science International (GSI) | +12122074140 | Website | + posts

Debbie Azar is an experienced executive with extensive knowledge of the jewelry and gem lab industries. Her entrepreneurial skills and clarity of vision have helped GSI achieve rapid and continuous growth worldwide.

She began her industry career by starting her own successful costume jewelry business. She then expanded her knowledge of the industry with sales, marketing and business development roles at several companies. In 2005, she joined Mark Gershburg to establish GSI. Ms. Azar is an active member of myriad industry organizations and charities; she currently serves as a Board Member of Jewelers for Children. She is also a Forbes Business Council member.

Her strengths include working directly with retail chains and stores to help build their business and brands. She is widely known in the industry for her commitment to meeting customer needs.

Previous PostGSI Expands National Footprint… Inaugurates Kerala Laboratory Next PostGSI Takes A Next Step Forward by Introducing Mobilab™ – An Integrated Approach to Innovation

Leave a Replay

Your email address will not be published. Required fields are marked *


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 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.

What are the 4Cs

A beautiful diamond is one of nature’s most mesmerizing creations. But how do you objectively judge the quality of the gem? The 4Cs – Cut, Color, Clarity, and Carat Weight – are the universal standard for doing this.

Is there anything beyond the 4Cs?

The 4Cs are an essential and important description of a diamond’s characteristics. But there is a considerable amount of detailed information behind each “C” along with other qualities of a diamond that affect its beauty, such as fluorescence, light performance and more.

How much do you need to know? That’s up to you, but knowing the 4Cs is almost essential.

What does a GSI diamond grading report look like?

GSI offers a number of grading reports (often referred to as “GSI Certificates”). You can see samples of them by browsing the Grading Reports page on our website.

What does a GSI colored diamond grading report look like?

You can see samples grading reports by browsing the Grading Reports page on our website.

What does a GSI Colored stone report look like?

You can see samples of Colored stones reports by browsing Grading Reports page on our website.

How does a GSI grading report compare to other laboratories that issue grading reports?

It is our policy not to comment on other laboratories. However, know that GSI adheres to the highest ethical standards. We do this in a number of ways:

  • Rotating gemologists to our different labs
  • Continuously upgrading our proprietary grading software to ensure full compliance with international grading standards
  • Having our gemological research department constantly investigate new developments in the industry, which informs the grading process

What’s the difference between a “GSI Certificate” and a “GSI Diamond Grading Report”?

GSI issues a variety of grading and identification reports. Consumers and industry professionals often call these reports “GSI Certificates”.

Select your currency