This simple but appealing heel is Diva by “Emilio Luca X,” which seems to be a store brand of Brantano, a Belgian firm operating stores in the suburbs throughout the United Kingdom. They call this “purple,” which might be pushing it a bit, but they also have a pink which is closer to fuchsia. I like the purple better, though: it seems to have greater potential for drama. “You can do anything, but don’t step on my non-blue shoes.” (Disclosure: I have turned up the brightness slightly on this picture so you can more clearly see the ribbon-y thing across the front.)
This is, incidentally, the very first time I’ve seen a shoe pitch with the heel height specified in metric: 85 mm, about 3.3 inches. The price from Brantano is £38, about $78 these days.