Lab-Grown Diamond Certification

By A Ritani on April 06, 2020

All Ritani lab-grown diamonds come with a grading certificate so you can be certain of its quality. Ritani’s lab-grown diamonds are graded by the world’s leading diamond laboratories such as the IGI, GCAL, and HRD. 

IGI Lab-Grown Diamond Grading Reports

The IGI (International Gemological Institute) is internationally recognized for its precise diamond grading reports. An IGI Laboratory Grown Diamond Report provides the same information as an earth-grown diamond grading report but makes it clear to the buyer that the diamond was lab-created.  

IGI lab diamond sample grading certificate

Shape and Cutting Style (left)

The shape and cutting style of the diamond is listed. 

 Diamond Clarity Plot  (right)

This diagram shows the location of the diamond’s inclusions.  

The 4 Cs  (left)

The diamond’s carat, color, clarity, and cut grade are listed here.  

Grading Chart (bottom)

This summary of the Color and Clarity grading scale helps you remember which grades are optimal. 

Diamond Measurements (left)

The diamond’s specific measurements can be found in this part of the report.  



GCAL Lab-Grown Diamond Grading Reports 

GCAL (Gem Certification & Assurance Lab) was founded in 2001 and is located in New York City’s diamond district. These reports are unique as they include an optical brilliance analysis and an optical symmetry analysis. GCAL’s mission is to protect consumers from fraud by providing them with accurate information about their diamonds and gemstones.  

GCAL lab diamond grading report

Gemprint (left)

Gemprint is unique to GCAL grading reports. It records your diamond’s “fingerprint” to help you identify your diamond. Gemprint can help you receive insurance discounts.

The 4 Cs (center) 

Your diamond’s 4 Cs information is listed here.




Light Performance (right)   

These graphics show you how well your diamond will reflect light.    




Laser Inscription (left)

A real image of your diamond’s unique laser inscription is shown here. 

Images  (bottom center)

Real photomicrographs of your diamond are shown here. 


HRD Lab-Grown Diamond Grading Reports 

Created in 2007, the HRD is Europe’s leading authority in diamond grading. The HRD’s headquarters is located in Antwerp, Belgium, the world’s oldest diamond hub. HRD grading reports are tamper-proof in order to prevent counterfeit documents. 

HRD grading report

Grading Scales (left)

A grading scale is provided for color, clarity, cut, proportions, polish, and symmetry. An ‘X’ indicates where your diamond stands on the scale. “LC” stands for “Loupe Clean.” 

Clarity Plot (right)

This illustration of your diamond will show where inclusions are located if any exist.

QR Code Scanner (left)

Easily access your grading report using your smartphone. 

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