To believe they would name a shiny rock "our light" is kind of ridiculous, that's a lot of money though, still I wouldn't call such a silly thing the light of any country.
The company that discovered the diamond must have been partying since. ::LOL::
And it's really huge. A tennis ball size is a hefty chunk of millions of years old worth of mineral. Now let's guess which stuffs are going to do with it. Luxury commodities for eccentric insanely rich? Diamond knives? Queen's new toothpaste?