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GIA Grading: Diamond Certification | Lauren B Jewellery & Diamonds

When diamonds, the highest issues patrons take a look at are the 4 C’s: Colour, Minimize, Readability, and Carat—however the place did these grading statistics come from? There are a number of grading institutes internationally, however just one may be the perfect: the Gemological Institute of America, or GIA for brief.

What’s the Gemological Institute of America (GIA)?

GIA is an acronym for the Gemological Institute of America, which is taken into account the world’s main geological analysis institute. Established in 1931, GIA is the world’s highest authority on diamonds, coloured stones, and pearls.

Within the 1940’s, the GIA created and carried out the 4 C’s and the Worldwide Diamond Grading System™. Since then, the GIA, together with each different grading institute on the planet, has been grading diamonds primarily based on these ideas.



Refers back to the diploma to which a diamond is colorless. The nearer a diamond is to colorless, the rarer and extra helpful it’s. A diamond shade scale ranges from D-Z—past that, are thought of “fancy” colours. Grades D, E, and F make up the colorless vary that are very helpful. The Close to Colorless Vary of G, H, I, and J may be very widespread and presents loads of worth.


The reduce of a diamond refers back to the actual proportions, high quality of polish and the association of a diamond’s sides. A diamond has sides that permit gentle to enter it, turn into refracted, and exit in a rainbow of colours.


Refers back to the presence of inclusions in a diamond. Inclusions are pure figuring out traits akin to minerals or fractures, that seem whereas the diamonds are being fashioned. They could seem like tiny crystals, pinpoints, clouds or feathers. Inclusions are ranked on a scale of perfection often called the readability scale. The dimensions ranges from F (Flawless) to I (Included) and is predicated on the visibility of inclusions at 10x magnification.


Carat isn’t a measure of a diamond’s measurement however, relatively a measure of a diamond’s weight. One carat will also be divided into 100 factors. A 0.75 carat diamond is similar as 75 factors or 3/4 carat diamond.

As soon as a diamond has been graded by GIA, it’s given a novel identification quantity that can be utilized to hint its historical past and a report is generated.

Diamond Grading Report


Gemological Institute of America vs. Different Grading Labs

Contemplating GIA stands for Gemological Institute of America, it’s a provided that there are grading institutes all around the world, together with extra in america. GIA is normally in comparison with IGI, or Worldwide Gemological Institute. IGI was established in 1975 with places in a number of nations often called diamond facilities all around the world. Just like GIA, IGI additionally presents programs and workshops along with its diamond and gemstone grading providers.

Different grading institutes embrace EGL (European Gemological Laboratory), GCAL (Gem Certification & Assurance Lab), AGS (American Gem Society), and so many extra.

Nevertheless, it’s a well-known undeniable fact that no different laboratory grades diamonds as critically because the Gemological Institute of America. For instance, IGI locations a larger emphasis on the reduce of the diamond, whereas GIA locations extra emphasis on shade and readability.

Why Purchase GIA Graded Diamonds?

The Gemological Institute of America isn’t solely a grading lab but additionally an academic establishment. It invests considerably in gemological analysis and gives coaching for gemologists worldwide. This dedication to schooling and analysis enhances its credibility.

As said above, the GIA is taken into account essentially the most prestigious and established grading establishment with a fame for having essentially the most stringent grading requirements within the business. It’s typically thought of the business customary for diamond grading, and their certificates are widely known and revered world wide. Figuring out this, why wouldn’t you need your diamond graded by the perfect?

Discover GIA Graded Diamonds at Lauren B

At Lauren B, we’ve a number of GIA Graduates on workers. Schedule an appointment with one among our extremely gifted design consultants to create your dream ring with a GIA graded diamond from our unique stock.

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