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Diamond Certificates & Reports

Almost everyone has heard of the "4 C's" of diamond value: cut, color, clarity and carat weight. Today, there's a "5th C": certification.

Also called a grading report, a diamond certificate that’s issued by a major independent gemological laboratory like GIA, AGS, or EGL USA is the best way to assure the quality, authenticity, and integrity of your purchase. So, why is it important to have certification for your diamond? There are a few reasons. First, as we mentioned, it’s important to know every detail of a diamond before you buy or sell one, since there are frequently small details (or unscrupulous additions) that can radically change the value of a diamond. Also, certification displays the provenance of a diamond. Knowing the provenance makes it safer to buy and sell diamonds, as well as prevents conflict diamonds from covertly entering the diamond supply.

GIA Diamond Grading Report

GIA provides four different kinds of reports for diamonds. However, the most common report issued for the diamonds used in engagement rings is the “GIA Diamond Grading Report.” It offers an assessment of a diamond's 4C's – color, clarity, cut, and carat weight – along with a plotted diagram of its clarity characteristics and a graphic representation of the diamond's proportions.

For standard round brilliant cut diamonds falling in the D-Z color range, the report also includes a GIA Cut grade. The GIA laboratory issues diamond grading reports for loose, natural diamonds in the D-Z color range that weigh 0.15 carats or more. GIA Diamond Grading Reports are not issued for synthetics, simulants, mounted diamonds or those that have undergone unstable treatments, such as fracture filling or coating. The independent laboratories of GIA are widely regarded by jewelers as offering the best and most objective reports on the quality of diamonds, which means that a GIA certification is the gold standard for ensuring the value of a diamond and the analysis of its traits, cut, and inclusions.

AGS Certificates

AGS, the American Gemological Society, is considered a high-quality certification to find attached to a diamond. Their quality is comparable with the GIA. Based in scientific principles to determine the quality of a diamond, AGS provides reports that are grounded in a 1-10 system of grading, which sets them apart from the letter system used by other scales. They offer precise grading that is easy to understand, sophisticated, and backed by security redundancies that make sure your report is secure.

Additionally, AGS offers an AGS Laboratories Colored Diamond Document for grading a fancy diamond. While the grading is rooted in science, the description of the color is, uniquely, written in language a layperson can understand. The report doesn’t stop at “color,” but also describes accent colors, saturation, and the overall richness of the diamond’s tone.

EGL Certificates

The vast majority of EGL USA certificates are requested by the jewelry trade, meaning that they’re one of the top certifiers and trusted by retailers as an independent third party. However, consumers may send their diamonds, colored stones, or pearls directly to an EGL USA Group office for identification, grading, or laser inscription. Retail jewelers can also make lab service arrangements for you. EGL USA is one of the largest gemological institutions in the world and grades a high percentage of all certified diamonds in the United States and Canada.

Contact Albert’s Diamond Jewelers for More Information on Certified Diamonds

As we at Albert’s Diamond Jewelers offer both thousands of loose diamonds across the entire spectrum of the 4 C’s, as well as glamorous settings from the top designers in the world of jewelry design, you can be sure that no matter your tastes in the glittering stones or your need, you’ll find what you’re looking for when you do business with us. If you’d like to learn more about the different certifications and the selections of loose diamonds available at Albert’s Diamond Jewelers that have been verified by these groups, contact us at (219)-322-2700, or visit our Merrillville and Schererville, Indiana showrooms today!

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