This necklace is advertised as .1 carat I2-I3 clarity, IJ color diamond on an 18 inch, .9 gram, 10K gold box chain.  Any negative reviews that ding it simply for being tiny (and it *is* tiny) or for having small inclusions should be taken with a grain of salt since Amazon is telling you in the description that this is exactly what they intended to send.  Now, having said that, my diamond seems to be quite clear--there are no visible inclusions that I can see, though I don't have a magnifier and I don't have a trained eye for such things, so take that for what it's worth.

My wife likes necklaces that are very subtle, and this fills the bill.  It is very attractive and looks good on her.

There is nothing here that surprised me in a negative way, so I don't have any reason to take stars off the rating.  HOWEVER, I feel like a triple digit asking price is a bit high on this piece given that it is advertised as a fairly flawed and very tiny diamond, the gold is only 10K and under a gram, and it is even made in China.  Still, what is a good price and what is not is at least a bit subjective and if this sounds like a good deal to you and decide to get it, you will own a very pretty piece.