jewelry store POS

I need my own point of sale, for jewelry stores, that allows controlling the inventory, printing the barcodes to register the inventory with a barcode reader and printer. That it allows to keep control of the layaways, repairs, scrap metal purchases, and that it is a multi-store, it is important that it be compatible with the North American payment gateways in the United States. I need accounting reports, profit and loss, sales, expenses etc, all this for each store. I need it to contain an ecommerce and if possible an auction module, where I can decide the fee (free or chargeable) to pay for participating in the auction, either for a specific product or for all.