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Diamonds: Hardness vs Toughness

If a diamond scratches glass, is it a real diamond? Can diamonds chip or break? Diamond is one of the hardest natural substances known to man! But what does this mean? There is a scale called the Mohs scale of hardness, with Talc being #1 the softest and diamond being #10 the hardest. What does

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What’s it worth? A DIAMOND IS FOREVER

A marketing slogan invented by the ad agency N.W. Ayer for DeBeers (The Diamond syndicate) in the 1940’s. “A DIAMOND IS FOREVER” This was an extremely successful campaign. Its purpose was to link Diamonds to romantic love. The meaning of A Diamond is Forever is that a diamond is a never-ending sign of love. A

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