I was a little sad I had to return these.  I usually wear a 10, sometimes a 9.5.  Reviews on other sites said these run small, so I ordered the 9.5, which was a little tight.  I ordered the 10 on another site, but it was too big and kept slipping off at the heel.  For this heel height and the price, I didn't want to get a shoe that didn't quite fit, so I couldn't keep either one.  Too bad, because this is a beautiful, quality shoe.  I wound up with Born's Perrine instead, which gives a similar look, fits perfectly in a 10, and happens to have a more comfortable heel height.