What is diamond certification?
Created by the Gemological Institute of America (GIA), diamond certification, or diamond grading, is a system for evaluating the quality of a diamond based on its carat, cut, clarity, and color (the 4Cs). Diamond certification standardizes the diamond market, provides a common language now used worldwide, and assists buyers in understanding exactly why the diamond they like for an engagement ring might be twice the price of another that is the same carat weight.
When a diamond is certified, it means it has been verified as 100% natural or enhanced. Certification also means that the quality of the diamond (its 4Cs characteristics) meets an established standard. Diamonds should only be certified by qualified, experienced gemologists and laboratories such as the GIA, the American Gem Society (AGS), the International Gemological Institute (IGI), and other independent, reputable jewelry and gemstone organizations established for promoting high standards in jewelry.
The certification itself that you receive is a document that includes details about the diamond’s cut quality, color grade, carat weight, clarity, length, width, and other characteristics. The certificate is the best proof of the type and quality of the diamond you are purchasing. Without exception, diamonds worth $1000 or more should come with a certificate from a reputable lab. It’s important to note that saying a diamond comes from a GIA-certified gemologist is not the same as actual diamond certification. The diamond certification indicates that the diamond has actually been certified, whereas a GIA-certified gemologist is someone who has taken classes from the GIA. The GIA certifies diamonds starting at .15 carats.
Another important consideration is the lab that provides the diamond certification. Each lab or institute grades and describes diamonds a little differently, which can affect the price and value of your diamond. Ensure that the diamond certificate you receive for your diamond comes from a certified entity for grading gemstones such as the GIA, AGS, IGI, and the EGL (European Gemological Institute).
Diamond Viewed Through A Loupe ( 10 x magnification)
