There are several ways to tell whether a diamond is real or fake if you're actually holding it in your hand. You can try the sandpaper test, the fog test, or even just pay attention to how brightly it shines. But can you tell the difference from looking at a photo?
We've grabbed photos of some of the prettiest diamond rings and costume jewelry money can buy. Will you be fooled? Test yourself with our handy quiz.
Like what you see? How about some more R29 goodness, right here?
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