Purchased at a Gready Brilliant store. Size 23.5, but it runs a bit large. I wore it twice for a short time and then put it away. I usually only wear 23.5, except for sneakers, but these were too big and slipped off, so I couldn't wear them. A colleague at work who used the same shoes usually wears a size 24 cm. She said they fit perfectly. Therefore, I've listed them as size 24 cm. These pumps are well-made and have a lovely color. They are almost flat and easy to wear. Please only purchase if you understand that these are used items. Gready Brilliant Flat shoes