This $199 DiamondNite supposedly tells the difference between real diamonds and cubic zirconia, but if you're saddled with a fake diamond, do you really want to know?
On the other hand, they're not good enough to detect between real diamonds and those synthetic ones that diamond companies like DeBeers can't even catch with their obviously more sophisticated equipment, so it's only good enough to get the really cheap stuff. [Kassoy via Microkhan via Boing Boing Gadgets]
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[Source: Gizmodo - Posted by FreeAutoBlogger]
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