Sizing Guide

Lumichu Sizing Guide : Find Your Perfect Fit

At Lumichu, we want your story to shine brightly on the perfect finger.  That's why we make it easy to find your ideal ring size!

Measuring Made Simple

We include a complimentary paper measuring tape with every order, allowing you to easily determine the perfect size for your future reference.

Don't Have a Measuring Tape? No Problem!

Here are two simple ways to measure your finger for a comfortable and beautiful fit

The String or Paper Method

  • Grab some string or a thin strip of paper.
  • Wrap it snugly, but not too tight, around the base of your chosen finger. It should comfortably slide over your knuckle.
  • Mark the spot where the string or paper overlaps to form a circle.
  • Unwrap the string or paper and measure the distance between the mark and the end in millimeters using a ruler.
  • Use a ring size chart to convert your measurement to a standard ring size.

The Existing Ring Method

  • Find a ring that fits you comfortably on the finger you plan to wear your Lumichu piece.
  • Measure the inner diameter of the ring in millimeters using a ruler.
  • Compare the measurement to a ring size chart to find your corresponding size.

Extra Sizing Tips for a Perfect Fit

  • Measure your finger later in the day when it's naturally a bit bigger.
  • If your knuckle is much larger than your finger base, measure both and choose a size in between.

Lumichu Ring Size Chart

This chart provides measurements in millimeters (mm) for both diameter and circumference,  along with ISO, US, and Asia sizes to help you find the perfect Lumichu ring for your story.