1) Could the casting wax rings with stone be casted ? 2) If I cast the wax rings with degine, it may damage stone or not ? 3) is it american diamond(zirconia) or real diamond with which is casted by us that is the most important queations by me . Can you explain me ? Because I am starting the jewellery casting factory , I am belong to India. Thank you 2 minutes jewellery 😊😊😊.