Yes, making charges could be different for different designs and shops. This is something you need to ask the jeweller you are buying from. They usually range from 3-25% depending on whether it is mass-machine made jewellery or intricate handmade jewellery. The price is higher for hand-made jewellery. For example, the making charges for machine-made chains can be as low as 3% while it's much higher for temple collection jewellery.