I returned a pair of black diamond studs (that were actually less expensive than these) but decided to take a chance on ordering them again, since other reviewers made me think it was a matter of chance to get a "good" pair.  I'm very glad I did.  The second pair are shallower and a little wider, though still 2 cttw, and are much more sparkly and clearer.  They are still black, but seem to reflect from colors around, or from what else I am wearing.  I really like them.