MRKT. Claire in Bordeaux

I've been looking long and hard for a nice pair of burgundy shoes to go with a dress I bought a couple of months ago, I may have fallen on the perfect pair - though I'm not quite sure of the sizing!

They seem to fit rather small at my usual 7 1/2 but after trying on the 8, I thought they may be too big and I'll end up flipping around in the shoe and regret the half-size up purchase! I've done it before, and I've vowed to try not doing it again...