Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is tasteless, odourless, strong, brittle solid, colourless in pure form, a …

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

In this guide, explore interactive charts that show how experts grade diamond cuts and understand the impact cut has on a diamond's sparkle, fire, and brilliance.

Jun 15, 2025 · diamond, a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme hardness, …

Diamond is a rare, naturally occurring mineral composed entirely of carbon. Each carbon atom in a diamond is surrounded by four other carbon atoms and connected to each of them by strong …

Jul 1, 2024 · What is a diamond? A diamond is a naturally occurring mineral made up of pure carbon atoms arranged in a crystalline lattice structure. What makes diamonds so valuable? …

Jan 18, 2022 · Diamonds are the most sought-after and admired gemstones, with a sparkling brilliance that sets them apart from all other jewelry. That’s as true today, when diamonds are …

There are 11 popular diamond shapes — Princess, Cushion, Heart, Pear, Marquise, Radiant, Asscher, Emerald, Round, Trillion and Oval. Each shape has its own sense of rapture and …

Mar 22, 2023 · The diamond that has a round shape, or cut, is believed to be the cut that holds its value best when compared to other diamond shapes. When you compare two different-shaped …

Diamond is the hardest known natural material and the third-hardest known material after aggregated diamond nanorods and ultrahard fullerite. Its hardness and high dispersion of light …