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Diamond Certification

Why Do I Need a Grading Report?

Most consumer purchases of significant value come with important certified documentation. Houses have deeds. Vehicles have titles and registration. But what about something as important as a diamond?

GIA Grading ReportA GIA Diamond Grading Report isn't an appraisal but a scientific blueprint of your stone's exact qualities. GIA's heritage as a research and educational institution means they are trusted to provide accurate, unbiased diamond evaluations. All GIA diamond grading reports contain a hologram, a security screen, and microprint lines as well as other security features that exceed industry guidelines. Simply put, they're here to help you know what you're buying.

The most widely used and trusted means of verifying a diamond's quality and providing positive identification is a GIA Diamond Grading Report or GIA Diamond Dossier®.

A GIA grading report provides an expert analysis of a diamond's quality based upon the "4Cs" of diamond grading: carat, color, cut and clarity. The GIA Diamond Grading Report also contains a plotting diagram that clearly shows a diamond's unique inclusions and other clarity characteristics. It undergoes a technical screening process, determining its potential as a synthetic or diamond stimulant, and is tested to ensure that the color is natural. Because GIA is not affiliated with any commercial enterprise, impartial and accurate analysis of a diamond's quality and value is assured.

GIA employs hundreds of highly trained diamond graders, gemologists, and research scientists who scrutinize diamonds and analyze them, depending on size, with as many as 40 pairs of eyes for each stone. GIA Laboratory experts have graded some of the world's most famous diamonds, including the legendary Hope Diamond (45.52 carats) and the De Beers Centenary Diamond (273.85 carats).

Reading a GIA Report

While a diamond is given as an expression of love or to celebrate a special occasion, it also represents a major investment in time and money. In order to be absolutely certain of what you're buying, it's important to receive a GIA grading report, such as the GIA Diamond Grading Report or a GIA Diamond Dossier®. These reports represent the most respected and impartial assessment of diamond's quality and authenticity.

GIA's diamond grading procedures are designed to be extremely accurate. Each diamond is subjected to the scrutiny and analysis of the Institute's expert diamond graders and gemologists. Each diamond grading report details the Institute's authoritative assessment of the 4Cs - color, clarity, cut, and carat weight.

All GIA diamond grading reports contain a hologram, background screen, and other security features that not only meet industry guidelines, but exceed them. Since GIA is not affiliated with any retailer, wholesaler, or manufacturer, you know that your GIA report represents the impartial opinion of unbiased professionals.