CN signifies that the jewellery is created in China, Whilst the letter D stands for solitaire diamond, indicating that just one diamond is used in the ring. As a result, if a hoop has N 925 Cn stamped on it, This is a all-natural sterling silver ring built in China. https://griffinmfuka.uzblog.net/the-5-second-trick-for-jp88-50464873