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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
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
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
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
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
What Does Fluorescence Tell Us? | GIA Research Because phosphorescence is so rare in natural stones, any diamond that exhibits this glow warrants further analysis to determine its origin While not conclusive on its own, phosphorescence is an important clue among many that can help identify a diamond’s true nature
Understanding the 4Cs of Diamond Quality - GIA 4Cs GIA’s diamond grading provides the consistent and unbiased results that the global diamond industry and diamond customers trust Without strict standards, the characteristics, quality and value of a diamond would be left open to interpretation
Diamond Origin | GIA 4Cs Expertise at your fingertips You don’t need to be a gemologist to purchase a diamond with confidence You just need to know where to find one GIA is the trusted benchmark for diamond grading Download the GIA App now to learn more about the 4Cs and look up GIA reports
Home | GIA 4Cs The 4Cs are the industry standard for evaluating diamond quality They are also the best way to understand your diamond, and to ensure accuracy in the evaluation of your diamond’s unique characteristics