(NEW YORK – February 26, 2020) – Recently, Gemological Science International’s (GSI) Mumbai laboratory identified HTHP lab-grown diamond with what appeared to be a laser-drilled channel. GSI researchers and scientists observed and studied this diamond since it would be highly unusual to laser drill a lab-grown diamond. Upon closer examination, the “laser drill channel” was found to be a typical HTHP inclusion that was cut open from top and pavilion. After this, the content of the inclusion was acid bleached out, while some residue was still present. The remnants of the inclusion have a strong resemblance to a laser drill treatment – this treatment is generally used to “clean out” black inclusions and enhance the appearance of a diamond.
It is a common misconception that a diamond can be identified as natural or lab-grown based on inclusions as the claim was made recently on Good Morning America Investigates. In this specific case, a hasty and inaccurate conclusion could have been made that the diamond is natural, with the appearance of what seems to be a laser drill channel since there are no recorded cases of lab-grown diamonds with this treatment, nor would it currently make sense to laser drill these diamonds.
“Diamond growing technology continues to improve and growers are trying to mimic natural diamonds in every possible way,” said, Nick Del Re, GSI’s Chief Information Officer.
GSI stresses the importance of using proper processes, equipment, and expertise when identifying diamonds. GSI’s research department continues to conduct advanced testing on lab-grown and identification.
About Gemological Science International (GSI)
Gemological Science International (GSI) is one of the largest gemological organizations in the world. Founded in 2005 in New York City, it has since grown to have 13 gemological laboratory facilities spanning four continents. Utilizing leading-edge processes and proprietary technologies, GSI provides manufacturers and retailers globally with a wide range of gemstone identification and grading services. The company is committed to advancing gemological research through its Research Center, and it offers gemological educational programs for trade professionals and the general public at all levels.
For more information about GSI, visit: www.gemscience.net
About the author
💎 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?
💎 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”.