All of my jewelry ships with Earth Song Jewelry pearly-white shimmer retail product cards. Earrings will include earring backs and will be on 2" x 2" earring cards. Necklaces will have product tags attached (via locking loop), unless you request your necklaces on 3" x 3" retail product cards.
I can also add product specific descriptions (and/or your store's SKU# and pricing) to the back of each product tag as an add-on option. Adding product descriptions is a great selling feature for your customers!