Size Guide

Find Your Perfect Fit

Choosing the right ring size should feel effortless. Whether you’re selecting a piece for yourself or a meaningful gift, this guide will help you find the perfect fit with confidence

How to Measure Your Ring Size

Option 1 — Measure a Ring You Already Own

Choose a ring that fits your desired finger

Measure the internal diameter (mm)

Match it to our size chart below

Option 2 — Measure Your Finger

Wrap a thin strip of paper or string around your finger

Mark where it overlaps

Measure the length in millimetres

Compare with our chart

Tip: Measure at the end of the day when your fingers are warm for the most accurate size.

Things to Consider

• Fingers can swell in heat and shrink in cold

• Wider bands may feel tighter, consider sizing up slightly

• Your dominant hand is usually slightly larger

• If you’re between sizes, we recommend sizing up

• Most women wear sizes L–P, with N being our most common ring size.

International Ring Size Conversion

We use Australian sizing, but you can easily convert using the chart below.

Still Unsure?

We recommend visiting a local jeweller for professional sizing or reach out to us at hello@byyc.com.au – we’re here to help you find your perfect fit.

Our Promise

Every by yc. piece is designed to be worn daily, your comfort matters just as much as the design.

AU / UK US EU Diameter (mm) Circumference (mm)
H446.514.846.5
I4.547.815.247.8
J549.015.649.0
K5.550.316.050.3
L651.516.451.5
M6.552.816.852.8
N754.017.254.0
O7.555.317.655.3
P856.518.056.5
Q8.557.818.457.8
R959.118.859.1
S9.560.319.260.3
T1061.619.661.6
U10.562.820.062.8
V1164.120.464.1

Necklace Guide