Diamond Brilliance Diamond Jewelry 101

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Natural Diamonds | Diamond Stone – GIA C
Get to know all you need about diamond – the history, facts, quality factors, treatments, imitations and much more here at GIA.

Diamond Description
Diamond forms under high temperature and pressure conditions that exist only within a specific depth range (about 100 miles) beneath the earth’s surface. Diamond’s crystal structure is isometric, which means the carbon atoms are bonded in essentially the same way in all directions.

GIA Diamond Research
Diamond stands at the apex of the hardness scale with a value of 10. It also has the highest thermal conductivity and the highest molar density of any terrestrial material, as well as a high resistance to acids, corrosion, and radiation.

Diamond History and Lore
Diamond’s splendor has been appreciated for centuries, but there was not much scientific knowledge about it before the twentieth century. Since then, diamond knowledge has grown steadily, with research by chemists, physicists, geologists, mineralogists, and oceanographers.

Diamond Quality Factors
The 4Cs describe the individual qualities of a diamond, and the value of an individual diamond is based on these qualities. The terms that people use to discuss the 4Cs have become part of an international language that jewelry professionals can use to describe and evaluate individual diamonds.

Home | GIA 4Cs
While choosing a diamond is a very personal decision, evaluating a diamond should always be a matter of precision. At GIA, we are incredibly proud that our 4Cs of diamond quality continue to educate the diamond industry and most importantly, protect diamond consumers everywhere.

Diamond Fun Facts
Diamond crystals are brought closer to the Earth’s surface through volcanic activity. Diamonds can be found in shallow alluvial deposits where the crystals settle after being transported away from the kimberlite pipes by geologic activity and rivers.

GIA Diamond Grading Scales: Universal Quality Measure | GIA 4Cs
The prospect of purchasing a diamond may seem daunting, but through GIA, an unbiased authority on diamonds, you have several handy resources to help you select the highest quality diamond. First up, an overview of the 4Cs: Color, Clarity, Cut, and Carat Weight.

What is Diamond Color & What it Means | GIA 4Cs
The GIA D-to-Z Color Scale is used to evaluate the depth of a diamond’s color. The normal color range goes from D for colorless to Z for light yellow, light brown, or light gray, with variations between receiving a color grade.

How to Buy A Diamond - GIA 4Cs
It isn’t until a diamond is cut, that the real beauty of a diamond begins to take shape. With a GIA Diamond Grading Report, you can confidently make your next diamond purchase.

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