CN means that the jewelry is made in China, Whilst the letter D stands for solitaire diamond, indicating that only one diamond is used in the ring. Hence, if a hoop has N 925 Cn stamped on it, It is just a normal sterling silver ring produced in China. CCD https://johnnydukap.theobloggers.com/43234827/5-tips-about-jp88-you-can-use-today