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Out of stock
John Hardy Classic Chain Ring – Signet in Dark Silver with Black Sapphire – Size 11
Crafted with matte blackened silver, this architectural John Hardy ring comes alive with elemental gemstones. Its graphic motif is an adaptation of the iconic Classic Chain. Ring measures 5.5mm to 17.5mm wide.
Out of stock
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John Hardy Ring Size Guide
Ring sizes are based on the circumference of your finger. Measure first, then match your measurement to the chart below.
Size chart
| US · Canada | UK · Australia | Finger circumference (cm) | Finger circumference | Finger circumference (mm) | Size on this site |
|---|---|---|---|---|---|
| 5 | J ½ | 4.93 | 4.93 | 49.3 | 5" |
| 6 | M | 5.18 | 5.18 | 51.8 | 6" |
| 7 | O | 5.44 | 5.44 | 54.4 | 7" |
| 8 | Q | 5.69 | 5.69 | 56.9 | 8" |
| 9 | S | 5.94 | 5.94 | 59.4 | 9" |
| 10 | T ½ | 6.20 | 6.20 | 62.0 | 10" |
| 11 | V ½ | 6.45 | 6.45 | 64.5 | 11" |
| 12 | Y | 6.73 | 6.73 | 67.3 | |
How to measure your finger
Wrap a string around the base of your finger
Make sure the string is pulled snug (the tighter the better) to find your best fit.

Mark where the string meets
With a pen or your other hand, mark where the string meets. Make sure it is pulled snug.

Measure the string with a ruler
Lay your string against a ruler and measure the length (cm). This number is your finger circumference. Compare it to our size chart to find which size is right for you.













