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

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 …

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 …

With an unbiased diamond evaluation, you’re free to focus on its beauty. We issue a variety of diamond reports, ranging from the GIA Diamond Dossier® to the GIA Diamond Origin Report.

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 …

what's in a name? Diamond [dye -mund] (noun) Diamond comes from the Greek word adamas which means “invincible.” For being the hardest material on earth, that is the perfect name for …

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 …

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!

A diamond’s journey is every bit as fascinating as its sparkle. GIA’s Diamond Origin and its related resources help you tell the story of the people in the country who brought you your diamond …

May 3, 2024 · Examines new developments in the story of diamond formation and their extraction from the earth.