CN means that the jewellery is produced in China, whereas the letter D means solitaire diamond, indicating that just one diamond is used in the ring. For that reason, if a hoop has N 925 Cn stamped on it, It's really a all-natural sterling silver ring manufactured in China. CCD https://beaugygnv.shoutmyblog.com/35890428/the-5-second-trick-for-jp88