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RING SIZE GUIDE

Find Your Perfect Ring Size

Finding the right fit should feel simple. Use our guide to measure your ring size at home and choose your Starline Jewel piece with confidence.

HOW TO MEASURE

Two Simple Ways to Find Your Ring Size

Choose the method that works best for you. Measure a ring you already own for the quickest result, or measure your finger directly if you don't have a ring available.

01 — MEASURE A RING

Measure the Inside Diameter

Choose a ring that already fits the intended finger. Place it flat on a ruler and measure straight across the widest part of the inside opening, from inside edge to inside edge. Record the measurement in millimetres (mm).

TIP: Measure only the inside opening of the ring — do not include the thickness of the band.

02 — MEASURE YOUR FINGER

Measure Around Your Finger

Wrap a thin strip of paper around the base of the finger where you plan to wear the ring. Keep it comfortably snug without pulling it tight. Mark where the ends overlap, then lay the paper flat and measure the length in millimetres (mm).

TIP: Measure the finger at the end of the day when it is typically largest. The paper should fit snugly but still slide comfortably over the knuckle.

RING SIZE CONVERSION

Find Your Starline Jewel Ring Size

Use your measurement from either method above and match it to the chart below. If your measurement falls between two sizes, we recommend choosing the larger size for a more comfortable fit.

US / CANADA
INSIDE DIAMETER (MM)
INSIDE
CIRCUMFERENCE
(MM)
UK /
AUSTRALIA
3
14.1
44.2
F
4
14.9
46.8
H
5
15.7
49.3
J
6
16.5
51.9
l
7
17.3
54.4
N
8
18.1
57.0
P
9
18.9
59.5
R
10
19.8
62.1
T
11
20.6
64.6
v
12
21.4
67.2
x
13
22.2
69.7
z

Between sizes? Choose the larger size for a more comfortable fit. Ring sizing may vary slightly by style and band width.

NEED A LITTLE HELP?

Still Unsure About Your Size?

Not sure which size to choose? We're happy to help. Contact us with your measurements or any questions, and we'll help you find the best fit.

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