What Does a GIA Diamond Certificate Mean?

When you purchase a diamond, always ask for a GIA diamond certificate. GIA certified diamonds have undergone rigorous testing.

GIA Certified Diamonds

The Gemological Institute of America, or the GIA, is world renowned for its comprehensive, unbiased grading reports and for its consistency. GIA sets the “gold” standard when it comes to diamond grading. But what exactly does a GIA diamond certificate tell you, and how do you read one?

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GIA was established in 1931. The institute has locations throughout the world and is known in the industry for helping to standardize grading. They have an exacting and strict process, and stones are in the hands of experienced experts. When you purchase GIA certified diamonds, you can rest comfortably knowing that you are receiving the quality for which you have paid.

The Grading Report

Diamonds are like snowflakes: every one is different and unique. The long formation process creates distinctive intricacies within the stone. Any change in exposure to different elements, such as how much heat it was exposed to and for how long, can change the features of the diamond. When it comes down to it, there are four main categories that GIA specialists examine. That’s right: the 4Cs. Clarity, cut, carat, and color.

  1. Cut: The cut refers to the diamond’s angles and proportions. Most diamond experts recommend prioritizing a quality cut above the other 3Cs.
  2. Color: The color of the diamond is graded on its lack of color. Colorlessness is highly valued.
  3. Clarity: Clarity refers to the blemishes or inclusions you find in the diamond. The more flawless it is, in general, the more the diamond is worth.
  4. Carat: This the weight of the diamond. It’s important to note that not every diamond has to be large. Some of the smallest diamonds, melee diamonds, are extremely important because they accent the jewelry into which they are set. They can also help smaller center stones appear larger and more dazzling.

When you receive a certificate for your GIA certified diamonds, you may find yourself a bit puzzled as to how to read it. Not only will your report show the 4Cs, it will discuss aspects like polish, symmetry and fluorescence.

Feel free to ask your diamond expert to explain all of the information to you. While the numbers may see confusing at first, once you have the certificate explained, you’ll find that it’s easy to understand. GIA is a phenomenal resource - and your diamond supplier can help you navigate all the information they have to offer.

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