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Is the IGI certificate as reliable as HRD or GIA certificate?

The International Gemological Institute, the world’s largest independent   
laboratory for testing and valuating gemstones and fine jewelry, was   
established in 1975 and is located in New York City, Antwerp, Toronto, Los   
Angeles, Bangkok, Mumbai (Bombay), Dubai and Tokyo. IGI can be reached at 

The International Federation of Diamond Bourses in their 1978 report   
accepts IGI as an equal to the longer existing HRD or GIA. 

Being a newcomer in those days (1975), IGI was being looked at with suspicion, and that is why - even nowadays - some people still refer to IGI as a lab too young to be good. Ironically, IGI today faces more discussions with   
dissatisfied diamond dealers than HRD  or GIA  does, for it is their   
feeling that IGI's grading system has become too severe, both for color   
as for clarity. 

According to some diamond websites, the impression is given that GIA is   
the 'only' consistent grader: however, GIA's main share holder is Mr   
Robert Mouawad who is involved in many diamond companies. This has given   
some people in the diamond community more than once the feeling that a   
conflict of interest could arise from this potential mix of diamond selling   
with diamond grading. The recent GIA scandal in 2005 of diamond   
misgradings for some very large diamonds will do nothing to quell such   

Neither HRD, nor IGI houses share-holders that operate in commercial
diamond activities. This emphasizes their status of independence.

As for consistency of IGI grading:

August 26, 2003  IGI Becomes First International Gemological Lab to Become
ISO 9001:2000 Certified 
Is the IGI certificate as reliable as HRD or GIA certificate? Read more about here:
./.. IGI Awarded Certification in Both the United States + Canada 

NEW YORK – The International Gemological Institute (IGI) today announced   
its Los Angeles and Toronto labs were granted International Organization   
for Standardization (ISO) 9001:2000 certification for operating a quality   
management system in the scope of independent third party analysis of   
diamonds, colored gemstones and jewelry articles. 

ISO is a network of national standards institutes from more than 140   
countries working in partnership with international organizations,   
governments, industry, business and consumer representatives to more   
directly link business objectives with business effectiveness. 

ISO 9000 is a generic name given to a family of standards developed to   
provide a framework around which a quality management system can   
effectively be based. The ISO 9000 family of standards was revised in   
December 2000. 

According to IGI North America President, Jerry Ehrenwald, G.G., A.S.A.,   
"This is a milestone for IGI. The ISO 9001 certification emphasizes the   
Institute’s continued commitment to provide clients with the highest   
quality of services available. It demonstrates that IGI is dedicated to   
excellence in every phase of its business operations." 

To be certified to the standard, companies must implement a quality   
management system that accounts for a range of company activities,   
including staff training, meeting customer requirements and delivering   
services. This is done using Plan-Do-Check-Act principles and Process   
Management, which outlines the steps taken to provide customers the   
services pledged by the company. 

As part of the ISO process, a third party auditor performed on-site   
assessments in both the Toronto and Los Angeles labs’ documented   
procedures, and audited its overall operations. To ensure continued   
compliance with ISO 9001:2000 and to provide feedback internally on   
process effectiveness, IGI business operations will be independently   
assessed by periodic routine surveillance audits. 
GIA is an independent nonprofit organization established in 1931, 
GIA (Gemological Institute of America) is recognized as the world’s foremost authority on diamonds, colored stones, and pearls. 
GIA exists to protect all purchasers of gemstones, by providing the education, laboratory services, research, and instruments needed to accurately and objectively determine gemstone quality. 
As creator of the 4Cs and the GIA International Diamond Grading System™, the Institute sets and maintains the standard for grading and identification practices used worldwide. 
GIA can be found on the web at <> 
HRD Diamond Certificate image
Hearts and Arrows IGI reliable diamond certificate image
HRD - Diamond High Council is a non profit organization
State controlled ISO 17025 HRD Antwerp
The abbreviation HRD stands for "Hoge Raad voor Diamant"
Translated in English it is "Diamond High Council" DHC
IGI - located in Antwerp World Diamond Center

Reliable Independent IGI and state controlled  
HRD are more usual institutes for grading
HRD Diamond Grading Certificate image
HRD Antwerp Diamond Certificate image
GIA diamond certificate image
Hearts & Arrows Genuine Diamond Certificate IGI, image
Genuine GIA Diamond Certificate image
GIA is a USA based independent commercial grading institute,
nonprofit organization
Verify authentic, genuine Diamond Certificates HRD -  IGI - GIA   
statement of the diamond identity and grade, including all relevant information
Check Diamond grading reports authenticity online
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  • Verify and check the authenticity of a IGI diamond certificate online:

 Email     Tel: +32 3 233 29 90 
Antwerp World Diamond Centre, Diamond Exchange, Hoveniersstraat 2, Antwerp / Belgium / Europe
This page was last updated on: August 9, 2018
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