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Diamondrings.co.za
Diamfin, 2 Norwich Close, Sandton, Johannesburg
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Ring Sizing Chart |
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Back
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All our rings are measured and standardized with a new Wheatsheaf measuring stick. The reading is taken as centre, with a tolerance of one quarter of a size. If you have your finger measured by a jeweller, always check if the size is centre, leading edge or trailing edge. Please note that half-sizes are also possible.
There is no substitute for having your finger measured professionally, but it's not an exact science. Our fingers change in size from morning to evening, month to month and even Winter to Summer. The following chart is helpful to see how the sizes compare.
South African, UK and American Ring Sizing Chart
SA & UK: |
Diameter mm |
Circumference mm |
American |
| A | 11.5 | 36.25 | 0.5 |
| B | 12.3 | 38.64 | 1 |
| C | 12.7 | 39.90 | 1.5 |
| D | 13.1 | 41.15 | 2 |
| E | 13.5 | 42.41 | 2.5 |
| F | 13.9 | 43.67 | 3 |
| G | 14.3 | 44.92 | 3.25 |
| H | 14.7 | 46.18 | 3.75 |
| I | 15.1 | 47.44 | 4.25 |
| J | 15.5 | 48.69 | 4.75 |
| K | 15.9 | 49.95 | 5.25 |
| L | 16.3 | 51.24 | 5.75 |
| M | 16.7 | 52.46 | 6.25 |
| N | 17.1 | 53.72 | 6.75 |
| O | 17.5 | 54.98 | 7 |
| P | 17.9 | 56.23 | 7.5 |
| Q | 18.3 | 57.49 | 8 |
| R | 18.7 | 58.75 | 8.5 |
| S | 19.1 | 60.00 | 9 |
| T | 19.5 | 61.26 | 9.5 |
| U | 19.9 | 62.52 | 10 |
| V | 20.3 | 63.77 | 10.5 |
| W | 20.7 | 65.00 | 11 |
| X | 21.1 | 66.29 | 11.5 |
| Y | 21.5 | 67.51 | 12 |
| Z | 21.9 | 68.77 | 12.5 |
| Z+1 | 22.3 | 69.99 | |
| Z+2 | 22.7 | 71.31 | |
| Z+3 | 23.1 | 72.57 | |
| Z+4 | 23.5 | 73.83 | |
| Z+5 | 23.9 | 75.08 | |
| Z+6 | 24.3 | 76.34 | |
| Z+7 | 24.7 | 77.60 | |
| Z+8 | 25.1 | 78.86 | |
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