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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
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 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 For nearly 100 years, we've provided consistent and unbiased expertise in the diamond industry As the home of the 4Cs, we are dedicated to educating the industry and most importantly, protecting consumers Learn how the 4Cs can help you make your next 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
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
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 With an unbiased diamond evaluation, you’re free to focus on its beauty
Diamond Origin | GIA 4Cs The origin of a natural diamond Forming the hardest natural mineral on earth Billions of years ago, 100 miles (161 km) or more in the mantle of the earth, pressure, heat and carbon atoms converged, creating the first diamonds