lies, lies, all lies.

That picture of the earth's core was disproven by the Russian Bore Hole.

Also diamonds are MUCH more common than DeBeers would like us to think. They have burned mountains of diamonds to keep the supply low and the cost high.

If ever DeBeers died and actual supply and demand came about, diamonds would be quite inexpensive.

Diamonds ARE a jewellers best friend. You can mount a diamond, and then polish the metal. Because the diamond is harder then the abrasive pastes used for metal polishing. Nice and easy.