NIWAKA jewelry uses Japanese ring sizes. A ring size comparison chart and a Ring Sizing Kit are available to help you determine your Japanese ring size. Most of our ring designs can also be resized after delivery; see Resizing for more information.
Choosing a Ring Size for Wider Designs
The ring designs listed below are wider than others and may fit tighter. Some customers prefer a size that is 0.5 or 1.0 larger than other designs.