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Diamond Certification Guide

Each Mazzucchelli’s Certified Diamond is inscribed with a unique serial number that matches a diamond certificate.  

You can access your own digital diamond certificate/grading report quickly and conveniently by following the steps outlined below: 

  1. Check your Mazzucchelli’s purchase receipt (or serial number detail email for online customers) and locate the serial number and laboratory details.
  1. Identify the name of the grading laboratory and follow the appropriate link from the list below.  
  1. On the laboratory site you can enter your serial number to view your full digital certificate/grading report details.

Please note - if your serial number ends with -X or -S please do not include this in your search.

Our Trusted Partners:  

De Beers Forevermark (FM)  

De Beers Group Institute of Diamonds is committed to grading only loose natural and untreated diamonds. 
We grade every clarity and all colours, including fancy colours, with a minimum weight of 0.10ct. 

Gemological Institute of America (GIA) 

GIA reports represent the highest standard of reliability, consistency and integrity. And now, GIA Report Check is available for all GIA reports, providing you with an additional level of assurance. 

International Gemological Institute (IGI) 

IGI's supreme position in the gemological world is no coincidence. It is the result of continuous research, support and synergy with professionals and consumers alike. 

Gemological Science International (GSI) 

We at Gemological Science International (GSI) have a vision: to create a modern, state-of-the-art diamond grading lab that takes advantage of the latest breakthroughs in diamond grading. 

Australian Diamond Grading Laboratory (ADGL)  

An independent laboratory that supports you and the industry.  

HRD Antwerp (HRD) 

My HRD Antwerp is a secure, 24/7 online service that provides global access to the HRD Antwerp grading report archive and transit results. 

American Gem Society (AGS) 

The American Gem Society (AGS) and GIA (Gemological Institute of America) have advanced our long-standing collaboration in pursuit of innovation, serving today’s jewelry professionals and our shared consumer protection missions. 

Maple Leaf Diamonds (CM) 

Congratulations on owning such a beautiful piece of Canada! An individual certificate of origin guarantees that every Maple Leaf Diamond™ was mined in Canada and is authentically natural and untreated – pure as the majestic ice fields of Canada’s great white north. 

If you have purchased a Forevermark Diamond, you also have the option of registering your diamond here. 

For any enquires or further information please contact your local Mazzucchelli’s retail store or contact us directly via this website. 

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