Ring Size Guide

Inspired by the ocean. Made to fit like a second skin. Your perfect ring should feel effortless — like seafoam on your fingertips! Let's find the size that fits your story.

How to measure your ring size at home

Option 1: Use a ring that already fits

• Pick a ring that feels just right.
• Measure the inside diameter in millimeters.
• Match your measurement to the chart above.

Option 2: Wrap it like a tidal current

• Cut a thin strip of paper or string.
• Wrap it around the base of your finger — not too loose, not too tight.
• Mark where it overlaps.
• Measure the length in millimeters (this is your finger circumference).
• Find the closest match on our chart.

Siren's sizing tips

• Measure at the end of the day — when your fingers are most relaxed.
• Hands feel slimmer when cold — let them warm up before measuring.
• If you're between sizes, go one up for comfort, especially for wider bands.

Still not sure? Ask a Siren.

Let us help you find your fit. Drop me a message — I'll be happy to guide you.