Jewelry Boutique

I'm considering getting a business license to sell jewelry, most likely online. I'm curious as to how much per month I'm looking at making. I would be making and selling the jewelry by myself. Watches, necklaces, earrings, keychains, etc. I know it depends on how much I actually make and sell per month, but I'm curious about what's realistic. Anyone have a similar business who'd be willing to share how much profit they turn? I'd appreciate the info to give me (and my hubby) and idea of how much I'll be bringing in. Thanks!