I need a jewellery cad designer for my jewellery project. -- 2

First we are going to make a bracelet for our client if the final product got approved the many new design's order will give. Nee to make the exact same bracelet but with some updates in this design the black part in the image would be leather or rubber wrist band as per customer's need no need to make that black part but the dimensions and the size would be given of the leather to be fit in the bracelet metal parts.