What is the standard gauge for a cartilage piercing?
14's are pretty much standard for all piercings, but I would recommend a dermal punch with actually removes the tissue reducing other risks. If you plan on stretching punch it at the gauge you want to stretch to if not then you can have them punch it in any gauge you like. Never use anything below a 14 for migration and rejection reasons. I wouldn't really recommend a 14 either, but it is your choice.