You can buy Calacatta Gold marble slabs locally at your fabricator warehouse or if your project is particularly big which means it requires several slabs (a minimum of 8 slabs, n1 bundle), you could ask and agree with your local fabricator to only cut the slabs for you. Ideally you can get in contact with a marble supplier based in Italy and get the Calacatta Gold marble slabs delivered directly to your fabricator for cutting; Nowadays technology allows you to receive exact hq photos of the slabs you are going to receive;