Use a ring you already own.
Choose a ring that comfortably fits the finger you plan to wear your Seth Anthony piece on. Measure the inside diameter across the widest point in millimeters, then compare it with the chart below.
Sizing Guide
Find your fit.
The right piece starts with the right fit.
Seth Anthony rings are offered in US sizing. Because each piece is made or selected in the size ordered and our pieces are not eligible for return, we strongly recommend confirming your ring size before purchasing.
How to measure
Go to the chartMeasure your finger.
For the best at-home result, use a ring sizer on the exact finger you intend to wear the ring on. Finger sizes can vary between hands, so be sure to measure the correct one.
For the most accurate fit.
Visit a professional jeweler and ask to be measured in US ring sizing. For wider or more substantial bands, we recommend trying on a ring with a similar width before choosing your size.
US ring sizing
Your fit,
in millimeters.
Compare the inside measurement of a ring that fits your intended finger.
Diagram not to scale. This chart is a guide, not a substitute for a professional fitting or confirmation of the sizes available for a particular design.
| US size | Inside diameter (mm) | Inside circumference (mm) |
|---|---|---|
| 4 | 14.9 | 46.8 |
| 4.5 | 15.3 | 48.1 |
| 5 | 15.7 | 49.3 |
| 5.5 | 16.1 | 50.6 |
| 6 | 16.5 | 51.8 |
| 6.5 | 16.9 | 53.1 |
| 7 | 17.3 | 54.3 |
| 7.5 | 17.7 | 55.6 |
| 8 | 18.1 | 56.9 |
| 8.5 | 18.5 | 58.1 |
| 9 | 19.0 | 59.7 |
| 9.5 | 19.4 | 60.9 |
| 10 | 19.8 | 62.2 |
| 10.5 | 20.2 | 63.5 |
| 11 | 20.6 | 64.7 |
| 11.5 | 21.0 | 66.0 |
| 12 | 21.4 | 67.2 |
| 12.5 | 21.8 | 68.5 |
| 13 | 22.2 | 69.7 |
Approximate conversions. Source: GIA ring size chart.
Before you order
The finger.
The hand.
The width.
Ring size can vary between fingers and hands, and the width of a band can affect how it feels. Measure the exact finger you intend to wear the ring on.
If you are between sizes or unsure of your measurement, visit a professional jeweler before ordering.
Return to the collectionPlease choose carefully.
A good fit starts here.
Our pieces are not eligible for return. Review our policies before placing your order.
