These 10k white gold round DIAMOND stud earrings, are a total of .18-.20 carats.  It's J-K color, which is the end of the range of near colorless to beginning of the range of faint yellow.  I2-I3 clarity means the diamond has inclusions, including feathers/crystals and may affect transparency and brilliance.  In this case, these diamond stud earrings are a frosty white looking color (rather like snowy diamonds), rather than clear, and are also a bit sparkly, but are not very sparkly.  The diamonds are cut in such a way as to catch maximum light, but the quality of the diamond makes it not so sparkly in the end.

GIFT-GIVING: This is probably only a good anniversary type gift, if this is all your price range can afford: otherwise I would look for something still this small with a higher diamond quality, which would sparkle more, and not be quite so white/cloudy/frosty looking.  This is, however, a perfect size for very small girls: I have seen mothers take young girls to get their ears pierced, and while that is not something I would recommend (as ears are still growing so much at that point, it's better to do later on), this is a great size for small girls: these are TINY diamond stud earrings, not too expensive, and kind of fun ~ would recommend for what they are.