Diamonds are the hardest substance in the world and are used to cut glass.

Diamonds are cut by lasers. That’s how they become shaped into their famous diamond prism.

So, if someone ever find themselves wondering if a diamond is real, they should slash it across a mirror or a piece of glass. Of course, they might get seven years of bad luck, but at least they’ll know that they are holding a real diamond.

Don’t get sucked into believing all the different valuations because most aren’t worth the paper their written on.

Most are retail valuations and don’t represent the true value of the diamonds. If it says $10,000.00 its most likely only worth one fifth of that if you wanted to resell it. Its all very misleading.

*http://www.bluenile.co.uk/diamonds_education.asp?gclid=CMK0gIi8pI4CFQV3MAodQQqoRQ

*http://www.diamondfacts.org/

I hope these are some help, and the websites are useful to look at.