Find Your Perfect Fit

Ring Size Guide

All Celestina rings are available in sizes 5.5 through 8. Use this guide to find your perfect fit before ordering — or explore our adjustable styles for a flexible option.

Watch: How to Measure Your Ring Size
US Ring Size Chart
US Size Diameter (mm) Circumference (mm)
515.7 mm49.3 mm
5.516.1 mm50.6 mm
616.5 mm51.9 mm
6.516.9 mm53.1 mm
717.3 mm54.4 mm
7.517.7 mm55.7 mm
818.2 mm57.2 mm
8.518.6 mm58.3 mm
919.0 mm59.5 mm
Highlighted sizes are available in all Celestina rings.
How to Measure Your Size

String or Paper Method

  1. Cut a thin strip of paper or use a piece of string about 10 cm long.
  2. Wrap it snugly around the base of the finger you plan to wear the ring on. It should fit comfortably — not too tight, not too loose.
  3. Mark where the paper or string overlaps with a pen.
  4. Measure the length in millimeters from the end to your mark. This is your circumference — match it to the chart on the left.

Pro Tips

Fingers are slightly larger in the evening and in warm weather — measure at the end of the day for the most accurate fit. If you are between sizes, we recommend sizing up for comfort.

Knuckle Sizing

If your knuckle is larger than the base of your finger, measure both and choose a size in between. The ring should slide over the knuckle with slight resistance and sit comfortably at the base.

Not Sure of Your Size?

Our Nopal Ring and Terra Ring are available in adjustable styles — designed to fit sizes 5 through 8 comfortably. Perfect if you are gifting or between sizes.

Shop Adjustable Styles →

Still have questions about sizing? We are happy to help.

Contact Us