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Find Your Perfect Fit
To ensure your new CrossMira ring fits comfortably, we recommend measuring your finger before purchasing. If you are between sizes, we always suggest sizing up.
Method 1: Measure an Existing Ring (Most Accurate)
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Select a ring that properly fits the intended finger.
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Measure the inside diameter of the ring (in millimeters).
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Compare your measurement to the chart below.
Method 2: The String Method
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Wrap a piece of non-stretchy string or paper around the base of your finger.
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Mark the point where the ends meet.
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Measure the string with a ruler (in millimeters). This is the circumference.
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Find your corresponding size in the chart.
CrossMira Size Chart (US Standard)
| US Size | Inside Diameter (mm) | Inside Circumference (mm) |
| 6 | 16.5 mm | 51.9 mm |
| 7 | 17.3 mm | 54.4 mm |
| 8 | 18.1 mm | 57.0 mm |
| 9 | 18.9 mm | 59.5 mm |
| 10 | 19.8 mm | 62.1 mm |
| 11 | 20.6 mm | 64.6 mm |
| 12 | 21.4 mm | 67.2 mm |
| 13 | 22.2 mm | 69.7 mm |
Pro Tips for Measuring
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Measure at the end of the day: Fingers tend to be smaller in the morning and larger at night due to swelling.
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Consider your knuckle: If your knuckle is on the larger side, order half a size larger so the ring can slide over it.
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Temperature matters: Do not measure when your hands are cold, as your fingers may shrink up to half a size.