Before purchasing a diamond, you should expect to review a copy of its certificate, as this is your guarantee of the quality and value of that diamond.

* Laboratory
* Carat
* Clarity
* Colour
* Cut
* Finished Grade
* Fancy Cuts Finished Grade

What’s in a Certificate?

A diamond certificate, also called a diamond grading report, diamond dossier or diamond quality report, is a report created by a gemologist, or gemologists, who have scrutinized and screened the diamond and placed it under a microscope to analyze its dimensions, cut, colour, clarity, carat weight, symmetry and other characteristics.



GIA laboratory is known for having the strictest, most consistent and unbiased systems for grading diamonds. Diamonds that are accompanied by these grading reports are the most highly valued in the industry, as their quality is considered guaranteed. All rings sold in Gem By Gems come with a complete GIA dossier (0.30cts above). The quality grading of polished diamonds can be summarized by what is generally known as the 4Cs. These are four parameters which bring together all of the properties and characteristics of a polished diamond.

Learn more about 4Cs

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