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John Hardy Essential Ring – Band in Silver 3.5MM with Black Sapphire Pavé – Size 7
A delicate John Hardy pavé ring in reclaimed sterling silver and ethically sourced black sapphires. Artisan handcrafted.
Duty Free Price: US$805
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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
Make sure the string is pulled snug (the tighter the better) to find your best fit.

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

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.















