Diamonds, anyone?

I came across a few quotes about diamonds. 

Some are popular and I have heard of them.  Maybe you have too?

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A kiss on the hand may be quite continental, But Diamonds are a girl's best friend.
Leo Robin 

Big girls need big diamonds.
Elizabeth Taylor

Diamonds are nothing more than chunks of coal that stuck to their jobs.
Malcolm Forbes

No pressure, no diamonds.
Thomas Carlyle 


When we long for life without difficulties, remind us that oaks grow strong in contrary winds and diamonds are made under pressure.
Peter Marshall