Oval
Round
Pear
Emerald
Cushion
Marquise
Radiant
Trillion
Princess
Sapphire Rings
Filter and sort
370 products
Ring Size Conversion Guide
This ring size chart offers our closest size conversions. When in doubt, we recommend sizing up by 1/4 size for a more comfortable fit—or down for a snugger feel.
| US/Canada | Inside Diameter (mm) | Inside Circumference (mm) |
|---|---|---|
| 3 | 14.05mm | 44.14mm |
| 3 1/4 | 14.25mm | 44.77mm |
| 3 1/2 | 14.45mm | 45.40mm |
| 3 3/4 | 14.65mm | 46.02mm |
| 4 | 14.86mm | 46.68mm |
| 4 1/4 | 15.04mm | 47.25mm |
| 4 1/2 | 15.27mm | 47.97mm |
| 4 3/4 | 15.53mm | 48.79mm |
| 5 | 15.70mm | 49.32mm |
| 5 1/4 | 15.90mm | 49.95mm |
| 5 1/2 | 16.10mm | 50.58mm |
| 5 3/4 | 16.30mm | 51.21mm |
| 6 | 16.51mm | 51.87mm |
| 6 1/4 | 16.71mm | 52.50mm |
| 6 1/2 | 16.92mm | 53.16mm |
| 6 3/4 | 17.13mm | 53.82mm |
| 7 | 17.35mm | 54.51mm |
| 7 1/4 | 17.45mm | 54.82mm |
| 7 1/2 | 17.75mm | 55.76mm |
| 7 3/4 | 17.97mm | 56.45mm |
| 8 | 18.19mm | 57.15mm |
| 8 1/4 | 18.35mm | 57.65mm |
| 8 1/2 | 18.53mm | 58.21mm |
| 8 3/4 | 18.69mm | 58.72mm |
| 9 | 18.89mm | 59.34mm |
| 9 1/4 | 19.22mm | 60.38mm |
| 9 1/2 | 19.41mm | 60.98mm |
| 9 3/4 | 19.62mm | 61.64mm |
| 10 | 19.84mm | 62.33mm |
| 10 1/4 | 20.02mm | 62.89mm |
| 10 1/2 | 20.20mm | 63.46mm |
| 10 3/4 | 20.44mm | 64.21mm |
| 11 | 20.68mm | 64.97mm |
| 11 1/4 | 20.85mm | 65.50mm |
| 11 1/2 | 21.08mm | 66.22mm |
| 11 3/4 | 21.24mm | 66.73mm |
| 12 | 21.49mm | 67.51mm |
| 12 1/4 | 21.69mm | 68.14mm |
| 12 1/2 | 21.89mm | 68.77mm |
| 12 3/4 | 22.10mm | 69.43mm |
| 13 | 22.33mm | 70.15mm |
Choosing the right size can be tricky, there are some instances where you may have to size up or down. Learn more in our Size Guide Page.
Need a more accurate sizing?
$4.50
/
Cart 0
Your cart is currently empty.
Start Shopping
Trending Now
