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    Ring Size Guide | JiStones Handcrafted Gemstone Rings

    Inside Diameter Inside Circumference Ring Sizes
    Inches MM Inches MM US & Canada & Mexico United Kingdom & Australian China & Japanese & South America Italy & Spain & Switzerland
    0.714 18.14 2.24 57 8 P½ 16 17
    0.73 18.54 2.29 58.3 8.5 Q½ 17 18.25
    0.746 18.95 2.34 59.5 9 R½ 18 19.5
    0.762 19.35 2.39 60.8 9.5 S½ 19 20.75
    0.778 19.76 2.44 62.1 10 T½ 20 22
    0.794 20.17 2.49 63.4 10.5 U½ 22 23.25
    0.81 20.57 2.54 64.6 11 V½ 23 24.75
    0.826 20.98 2.59 65.9 11.5 W½ 24 26
    0.842 21.39 2.65 67.2 12 X½ 25 27.25

    *If your determined size is between two ring sizes, please select the next larger size.

    *For any size (smaller, larger, or half) that is not provided above, please contact us

    *If you already have a ring that fits you, you can measure its diameter with a ruler. The table above helps you to determine the corresponding ring size for your measured diameter.

    How to measure your gemstone ring size:

    1. Wrap a soft measuring tape or string tightly around your finger (at the base where the ring will sit).
    2. Mark where it meets and measure the length with a ruler.
    3. Compare your measurement to the chart above.

    Need a custom size?
    Contact us — we're happy to help.

    With clarity and intention,
    The JiStones Team