Diamonds are among nature's most precious and beautiful creations. This hardest gem of all is made of just one element: carbon. It's valued for its colorless nature and purity. Most diamonds are primeval - over a billion years old - and form deep within the earth.
Diamonds are the hardest material on earth: 58 times harder than anything else in nature.
The average yield in most diamond mines is 1 part diamond to 1 million parts host rock.
Fifty light years from earth, this star is a 10 billion-trillion-trillion carat diamond.
The less color, the higher the grade. Even the slightest hint can make a dramatic difference in value.
Clarity grades assess the number, size, relief, and position of inclusions and blemishes.
Cut (proportions, symmetry, and polish) is a measure of how a diamond’s facets interact with light.
Rarity means larger diamonds of the same quality are worth more per carat.
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