Personalized New Zircon Rings For Men And WomenProduct Information: Process: Polishing inlay Material: Synthetic cubic zirconia S925 silver Processing process: Electroplating Size Information: Ring number: 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 Inner circumference (mm): 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64 Inner diameter (mm): 15. 3, 15. 6, 15. 9, 16. 2, 16. 6, 16. 9, 17. 2, 17. 5, 17. 8, 18. 2, 18. 5, 18. 8, 19. 1, 19. 4, 19. 7, 20. 1 Packing list: