Diamond is the hardest known natural material and one of the two best known forms (or 
allotropes) of carbon, whose hardness and high dispersion of light make it useful for industrial applications and jewelry. Diamonds are specifically renowned as a mineral with superlative physical qualities — they make excellent abrasives because they can be scratched only by other diamonds, Borazon, ultrahard fullerite, or aggregated diamond nanorods, which also means they hold a polish extremely well and retain luster.
Diamonds are one the most precious treasures in the world. These wonderful gemstones vary in color, but the most valuable are pure-white and clear as crystal. However, their beauty becomes evident only after they have been skillfully cut, chiseled and polished. Most though, about 80 percent, are used as drill bits and will never become a beautiful gem in someone's jewelry box.
Diamonds show the deepest element on Earth. The name diamond comes from the Greek adamas ('impossible to tame'). Diamonds have been treasured as precious ever since they began being used as religious icons in India 2500 years ago. Their use as a tool is also from way back. They are famous for their hardness, which is given the top grading in gemology with Hardness 10. Lasers are now used to cut gem quality diamonds but the only substance capable of cutting a diamond is a diamond. Being the hardest known natural substance it is tested upon glass or any other material for cutting.
allotropes) of carbon, whose hardness and high dispersion of light make it useful for industrial applications and jewelry. Diamonds are specifically renowned as a mineral with superlative physical qualities — they make excellent abrasives because they can be scratched only by other diamonds, Borazon, ultrahard fullerite, or aggregated diamond nanorods, which also means they hold a polish extremely well and retain luster.Diamonds are one the most precious treasures in the world. These wonderful gemstones vary in color, but the most valuable are pure-white and clear as crystal. However, their beauty becomes evident only after they have been skillfully cut, chiseled and polished. Most though, about 80 percent, are used as drill bits and will never become a beautiful gem in someone's jewelry box.
Diamonds show the deepest element on Earth. The name diamond comes from the Greek adamas ('impossible to tame'). Diamonds have been treasured as precious ever since they began being used as religious icons in India 2500 years ago. Their use as a tool is also from way back. They are famous for their hardness, which is given the top grading in gemology with Hardness 10. Lasers are now used to cut gem quality diamonds but the only substance capable of cutting a diamond is a diamond. Being the hardest known natural substance it is tested upon glass or any other material for cutting.
One unusual ancient superstition was held in relation to diamonds: that they were "poisonous" and yet were believed to have the power as an antidote to poison if dipped in water or wine!
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