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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 History and Lore
Diamonds were discovered in the pans of gold miners as they sifted through the gravels of local rivers. Once it reached its full potential, Brazil dominated the diamond market for more than …
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 …
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 …
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 …
GIA Diamond Clarity Scale | Global Standard for Comparison
Aug 13, 2015 · Toggle through the examples, and mouse over the diamonds to see how blemishes and inclusions can impact a diamond’s appearance at each grade level on the …
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 …
Diamond - Gemological Institute of America
(noun) Diamond comes from the Greek word adamas which means “invincible.” For being the hardest material on earth, that is the perfect name for this gem!
GIA Diamond Origin - Gemological Institute of America
GIA’s Diamond Origin tells the story of how diamonds support jobs, education, and healthcare and protect the environment in and around local mining communities. When you buy a diamond …
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 …