Gloves made of quality leather are beautiful, durable and protect you effectively from wind and cold (even more so when they are lined with a woolen material). For mid-season, you will find unlined or perforated leather gloves (driving gloves type).
For really nice leather gloves, expect to pay between €80 and €150. You can find cheaper options, but in this case you will need to be careful about the quality of the materials and the manufacturing.