Brand new, unused 18K K18 Bismarck Ring This is a very popular Bismarck ring. The size is 16.5 as shown in the image, but in most cases, it's common to choose a size about 2 sizes larger for Bismarck rings. Therefore, if you are purchasing, it's best for those who usually wear around size 13-14. - Material: 18K K18 - Design: Bismarck - Size: Fits those who wear approximately size 13-14 (actual size is 16.5) Returns are strictly refused to prevent product substitution. The case is not included. Thank you for viewing.