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 are diamonds with a noticeable body color. They can sell for over $1M/carat.
Diamonds from Coal?
Diamonds Do Not Form From Coal That is one of the biggest misconceptions in science.
Diamond: The Mineral
Diamond is a gem of exceptional beauty and a mineral with many industrial uses!
World*s Largest Diamonds Stories of the largest rough, faceted and carbonado diamond.
Diamond Source Rocks
Kimberlite is a variety of peridotite, an igneous rock that can be a host rock of diamond.
Hardness Picks - Test for hardness with precise and easy-to-use hardness picks.
Facts About Diamonds
Interesting Facts About Diamonds You are a diamond expert if you know all of these!
Gifts That Rock
Gifts That Rock - What are the most popular gift items in the Geology.com store?
Blood Diamonds are illegally traded diamonds that are often used to fund conflict.
Carbonado is an extremely tough variety of industrial diamond with exceptional cutting abilities.
USA Diamond Mine
You Can Be A Diamond Miner! At the Crater of Diamonds Mine you keep what you find.
Lab-Grown Diamonds? What are they? Can people really make diamonds? Are they real?
US Diamond Mines
US Diamond Mines Will a mine in WY or CO break our gem diamond import dependence?
Diamonds from Space?
Diamonds in Meteorites? Some meteorites contain amazing numbers of tiny diamonds.
Blue Diamonds are colored by a few boron atoms substituting for carbons in the diamond crystal.
Red Diamonds are exceptionally rare. In a typical year, only a few diamonds earn a red color grade.
Green Diamonds - one of the rarest and most valuable diamond colors.
Geology Tools Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans.
Diamond Production leaders include: Botswana, Russia, Angola and Canada.
Herkimer Diamonds are doubly-terminated quartz crystals mined in New York.
Huge Diamond Deposit
The Largest Diamond Deposit in the world could be under Popigai Crater in Russia.
Yellow Diamonds are the most valuable yellow gems and the 2nd most common fancy diamond.
Canadian Diamond Mines produce some of the largest and highest quality gems!
Brown Diamonds are growing in popularity and are frequently seen in fashion jewelry.