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Continue ShoppingFind 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.