I would venture a "yes." After all, once they're cut, how would you tell the difference?
If the bottom falls out on diamond prices, i want to buy a barrel full just to keep around :)
The good folks at DeBeers will teach jewelers to look for naturally occuring flaws to be able to tell the 'real' thing from shoddy man made stones.
There are ways to test them for authenticity, I just can't think of the name at the moment. You can bet jewelers are not going to pay as much for the fake ones as they do the real ones. If it did come to the point that they couldn't tell, then they would probably just deal with reputable people, like DeBeers. jmo
>>> once they're cut, how would you tell the difference?
The monopoly named DeBeers is definitely worried about the competition. I understand DeBeers is etching a microscope 'identifier' on their diamonds using lasers.