Customer Care

Ring Sizing Guide

A piece meant to be worn for generations should fit perfectly from day one.

Size Chart

Measurements are of the inside of the ring. If you already own a ring that fits well, measure its inside diameter and match it to the chart below.

US Size	Inside Diameter (mm)	Inside Circumference (mm)
4	14.9	46.7
4.5	15.3	48.0
5	15.7	49.3
5.5	16.1	50.6
6	16.5	51.9
6.5	16.9	53.1
7	17.3	54.4
7.5	17.7	55.7
8	18.1	57.0
8.5	18.5	58.3
9	19.0	59.5
9.5	19.4	60.8
10	19.8	62.1

How to Find Your Size at Home

You'll need about two minutes and either a ring you already own or a strip of paper and a ruler. Both methods below work with the chart above.

Method 1 — Use a Ring You Own

The most accurate option

1
Pick the right ring. Choose one that fits the exact finger you're shopping for — sizes differ between fingers and even between hands.
2
Measure the inside. Lay the ring on a ruler and measure the inside of the band, edge to edge across the widest point, in millimeters. Don't include the metal itself.
3
Match to the chart. Find the closest number in the “Inside Diameter” column above — that row is your US size.

Method 2 — Measure Your Finger

No ring? Use paper or string

1
Cut a thin strip. Use a strip of paper about 5mm wide (or a piece of non-stretchy string) — wide ribbon or stretchy material will throw off the measurement.
2
Wrap and mark. Wrap it around the base of your finger, snug but not tight — it should slide over your knuckle with slight resistance. Mark the exact point where the end overlaps.
3
Measure the length. Unroll it flat and measure from the end to your mark in millimeters.
4
Match to the chart. Find the closest number in the “Inside Circumference” column above — that row is your US size.

Illustrated guide: wrap string or a strip of paper around the base of your finger, mark where the end meets, then lay it flat and measure the length in millimeters against a ruler. — The string method, step by step.

Tips for the best fit: measure at the end of the day when your fingers are at their largest, avoid measuring when your hands are cold, and repeat the measurement two or three times to make sure it's consistent. If you're between sizes, choose the larger one — and remember the ring has to pass over your knuckle comfortably.

Adjustable Pieces

Some of our rings, like the Twisted Marquise Ring, feature an open, adjustable band designed to fit most — no sizing needed. Each product page notes whether a piece is adjustable or offered in fixed sizes.

Still Unsure?

We're happy to help you find your size — reach out through our contact page and we'll walk you through it.