A famous slogan claims that a diamond is forever. While these precious stones symbolize love and glamour for millions of couples, there's a lot about nature's most famous jewel you might not know. See more »

Diamond engagement rings. Diamond anniversary bands. Diamond earrings and necklaces. And now, the right-hand diamond ring! The four Cs -- cut, clarity, carat and color. Find out what the fuss is all about. See more »

Diamonds are beautiful and popular - but not everyone can afford these gems. While man-made versions are less expensive, most lack the luster and brilliance of the real thing, except moissanite. See how it compares! See more »

The world of famous gemstones is a strange one. If we had a nickel for every gargantuan, mystery-shrouded, supposedly cursed ruby or diamond, we'd have enough money to buy one of them. See more »

Whenever I hear people talking about buying diamonds, they keep mentioning the four seas. What does that have to do with diamonds? See more »

Asbestos, once seen as a miracle construction material and used ubiquitously, has been found to be a deadly and unwanted substance. It is now clear that asbestos exposure places you at risk for a variety of respiratory illnesses. Is asbestos a friend or foe? Take this quiz and learn more about asbestos. See more »

Alabaster, True alabaster is a soft, fine-grained form of gypsum (calcium sulfate) that is easily carved. See more »

Asbestos, a name applied to several minerals from which flexible, heat-resistant fibers are obtained. See more »

Gem, a beautiful stone, valued chiefly for personal adornment. Most gems are minerals and are more exactly called gemstones. See more »

Gypsum, a soft, white mineral consisting of calcium, sulfur, and water. Gypsum is found in thick beds deposited by ancient seas. See more »