Each part will have to be bought in smaller quantities, and thus will be more expensive. Second, know your market. Check out similar merchandise in stores, flea markets and other places that sell jewelry like yours, and that target customers like the ones you want to target. Third, mark up and price your products so that you will make a sufficient profit. Remember, it's always easier to lower a price, than raise a price.
Customers smile at lower prices, but frown on raised prices.
It's always difficult to recoup your labor, that is, the amount of time you put into making a product. You usually have to discount your labor. You want to price your items at least 2 times your Total Cost, and preferably 2.5 to 3.0 times your Total Cost. Too many people underprice their products. Don't be afraid to adequately price your products.