CN signifies that the jewellery is made in China, While the letter D stands for solitaire diamond, indicating that only one diamond is used in the ring. S925 ALE 54 refers to a world typical for sterling silver jewelry, where ALE is brief for Algot Enevoldsen, the father of PANDORA, https://garrettjvfpy.thekatyblog.com/35361267/little-known-facts-about-jp88