Lab Grown Diamonds

Observed Lab Grown Diamonds While Examining Diamonds

A parcel of a few diamonds came to GSI for testing. Size of diamonds ranges from 0.40 – 0.70 Cts. Diamonds graded as high clarity and near colorless.

Visual examination was difficult to identify because natural diamond and laboratory grown diamonds has identical properties.

Lab Grown Diamonds

Preliminary testing indicated that a few diamonds from the parcel required further testing.

natural diamond

Inclusions: Less than 10X and 30X clouds and pinpoints like inclusions on the table were observed in some of the diamonds.

In some of the diamonds feather like or surface reaching inclusions on girdle were observed.

Lab Grown Diamonds

Diamond View:

Green fluorescence show growth layers along with the phosphorescence. The fluorescence patterns characteristics of near-colorless lab grown diamonds. These features are typical for CVD grown diamonds.

Observed Lab Grown Diamonds While Examining Diamonds 1  certified lab grown diamonds

Lab grown diamond’s detection requires advanced equipment, theoretical knowledge and practical experience. Without these conditions, the detection is impossible.

Observed Lab Grown Diamonds While Examining Diamonds 2

 

 

 

 

 

 

 

About the author

Debbie Azar
Co-founder & President at | +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. Forbes Councils Member. She is also a Forbes Councils 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.

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FAQ

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.

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”.

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