What is Diamond?-- Lab-grown varieties are made by people -- The world's most popular gemstone -- A "super material" with many uses -- Superior refractive index, dispersion, luster -- Exceptional hardness, thermal conductivity |
Colored Diamonds
![colored diamonds](https://geology.com/a/ibd-colored-diamonds.jpg)
Colored Diamonds are diamonds with a noticeable body color. They can sell for over $1M/carat.
Red Diamonds
![red diamonds](https://geology.com/a/red-diamonds.jpg)
Red Diamonds are exceptionally rare. In a typical year, only a few diamonds earn a red color grade.
Largest Diamonds
![world's largest diamonds](https://geology.com/a/largest-diamond.jpg)
World*s Largest Diamonds Stories of the largest rough, faceted and carbonado diamond.
Diamonds from Coal?
![Diamonds from coal](https://geology.com/diamond/images/diamond.jpg)
Diamonds Do Not Form From Coal That is one of the biggest misconceptions in science.
Carbonado Diamond
![carbonado diamond](https://geology.com/a/carbonado.jpg)
Carbonado is an extremely tough variety of industrial diamond with exceptional cutting abilities.
Diamond Source Rocks
![kimberlite by Parent Géry](https://geology.com/diamond/images/peridotite.jpg)
Kimberlite is a variety of peridotite, an igneous rock that can be a host rock of diamond.
Lab-Grown Diamonds
![Lab-Grown Diamonds](https://geology.com/a/lab-created-diamonds.jpg)
Lab-Grown Diamonds? What are they? Can people really make diamonds? Are they real?
Blue Diamonds
![blue diamonds](https://geology.com/a/blue-diamond.jpg)
Blue Diamonds are colored by a few boron atoms substituting for carbons in the diamond crystal.
Facts About Diamonds
![Diamond Facts](https://geology.com/diamond/images/diamond-facts.gif)
Interesting Facts About Diamonds You are a diamond expert if you know all of these!
Yellow Diamonds
![Yellow Diamonds](https://geology.com/a/yellow-diamonds.jpg)
Yellow Diamonds are the most valuable yellow gems and the 2nd most common fancy diamond.
Diamonds from Space?
![Diamonds in Meteorites](https://geology.com/diamond/images/diamonds-in-meteorites.jpg)
Diamonds in Meteorites? Some meteorites contain amazing numbers of tiny diamonds.
Huge Diamond Deposit
![Popigai Diamonds](https://geology.com/c2/popigai-diamonds-180.jpg)
The Largest Diamond Deposit in the world could be under Popigai Crater in Russia.