Ring size isn’t a suggestion.
If the size is wrong, the ring doesn’t matter.
This guide is built to help you determine your accurate ring size the first time, so your ring feels secure, comfortable, and correct for everyday wear.
Your fingers change size throughout the day due to:
Temperature
Activity and workouts
Swelling and hydration
A properly sized ring should:
Slide over the knuckle with light resistance
Sit comfortably without digging
Stay secure without spinning
If you’re buying a ring meant to last decades, sizing is not optional.
If you already own a ring that fits the intended finger perfectly, this is the most accurate way to size.
How to measure:
Place the ring on a flat surface
Measure the inside diameter (edge to edge) in millimeters
Match it to the chart below
| US Size | Inside Diameter (mm) | Inside Circumference (mm) |
|---|---|---|
| 4 | 14.9 | 46.8 |
| 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 | 18.9 | 59.5 |
| 9.5 | 19.4 | 60.8 |
| 10 | 19.8 | 62.1 |
| 10.5 | 20.2 | 63.4 |
| 11 | 20.6 | 64.6 |
| 11.5 | 21.0 | 65.9 |
| 12 | 21.4 | 67.2 |
All rings are sized using US ring sizing.
If you’re outside the US, convert before ordering.
What you’ll need:
Thin strip of paper or string
Pen
Ruler (millimeters only)
Steps:
Wrap the paper around your finger (snug, not tight)
Mark where the ends overlap
Measure the length in millimeters
Match the measurement to the circumference column above
Measure 2–3 times for accuracy.
Measure at the end of the day when fingers are largest
Avoid measuring after workouts, alcohol, or heavy sodium intake
If you’re between sizes, always size up
Wider bands fit tighter than thin bands.
| Band Width | Fit Recommendation |
|---|---|
| 2–3mm | True to size |
| 4–5mm | Consider sizing up slightly |
| 6–7mm | Often requires sizing up |
| 8mm+ | Almost always size up |
If you ignore band width, the ring may feel wrong even if the size is technically correct.
Engagement Rings vs Wedding Bands
Engagement rings are usually fine at true size
Wedding bands are often wider and fit tighter
Stacked rings require extra attention to sizing
This is why guessing leads to resizing.
If you’re between sizes or ordering a wider band:
Choose the larger size
Or contact us before placing your order
Avoiding resizing is always better.
We design rings to be worn every day, not just photographed.
Comfort, balance, and correct sizing matter more than trends.
When a ring disappears on your hand — that’s correct fit.
Women’s Diamond Wedding Bands
