Measure a ring you love.
Choose a ring that fits the intended finger. Lay it flat and measure the inner opening through its center in millimeters. Compare this diameter with the chart.
Measure inside edge to inside edge, excluding the band.
A LITTLE GUIDANCE, A PERFECT BEGINNING
Find your ring size.
A ring should feel as good as it looks. Start with your size,
or a measurement in millimeters.
01 / YOUR FIT
A small detail.
A world of difference.
We use US ring sizes. Select a size to see its measurements, or compare a measurement with the chart.
or use a measurement
YOUR SIZE REFERENCE
Your result will appear here.
YOUR SIZE REFERENCE
Inside diameterInside circumference
This is a sizing reference. Available sizes are shown on each product. For an in-between fit or a size outside US 3–10, ask the atelier.
02 / TWO WAYS TO MEASURE
Make yourself comfortable.
Measure your finger.
Wrap a narrow paper strip around your finger, mark where the ends meet and measure that length in millimeters. Compare this circumference with the chart.
Keep the strip comfortable, and check that the fit can pass over your knuckle.
03 / THE REFERENCE
Every half size
makes a difference.
Approximate measurements. Small rounding differences are normal between sizing charts.
Chart reference: Tiffany & Co. size guide ↗
Let us help you choose →| US size | Inside diameter | Inside circumference |
|---|---|---|
| 3 | 14.1 mm | 44.2 mm |
| 3.5 | 14.5 mm | 45.5 mm |
| 4 | 14.9 mm | 46.8 mm |
| 4.5 | 15.3 mm | 48.0 mm |
| 5 | 15.7 mm | 49.3 mm |
| 5.5 | 16.1 mm | 50.6 mm |
| 6 | 16.5 mm | 51.9 mm |
| 6.5 | 16.9 mm | 53.1 mm |
| 7 | 17.3 mm | 54.4 mm |
| 7.5 | 17.7 mm | 55.7 mm |
| 8 | 18.1 mm | 57.0 mm |
| 8.5 | 18.5 mm | 58.3 mm |
| 9 | 18.9 mm | 59.5 mm |
| 9.5 | 19.4 mm | 60.8 mm |
| 10 | 19.8 mm | 62.1 mm |
HERE FOR YOUR STORY
A little unsure? Let’s talk.
Tell us the piece you love and the measurement you have.
We can help you with your next step.