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 …
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.
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 …
Gemological Institute Of America | All About Gemstones - GIA
Fancy Color Diamond Dazzling brilliance. Captivating color. These are the planet’s most valued gems.
What Is a Real Diamond? - GIA 4Cs
Jan 10, 2017 · Incredibly hard, highly refractive, practically impervious to heat, diamond is a crystal form of carbon. But what makes it a real diamond? Find out!
The Extraordinary Backstory of Natural Diamonds: A Diamond Is …
May 3, 2024 · Examines new developments in the story of diamond formation and their extraction from the earth.
GIA Diamond Grading Scales: The Universal Measure of Quality
Mar 14, 2013 · 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 …
A Study of the Winston Red: The Smithsonian’s New Fancy Red …
Presents the first scientific and historical study conducted on the 2.33 ct Winston Red, the fifth-largest known Fancy red diamond in existence.
Diamond Fun Facts
Nov 24, 2015 · 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 …
About GIA | GIA 4Cs
As the home of gemological research and education, we invented many of the instruments used by the international gem and jewelry industry, and we even created the 4Cs of diamond quality.