Importex Sizing Guide

  • The best way to determine your finger size is to visit at least one reputable jeweler. A second opinion is advised.

    Some jewelers may disagree, but often there are discrepancies in the sizing tools made by different manufacturers.


    If you want to place an online order to guarantee the sale price, you can do so, in the comment box clearly
    explain that you will call us back with the correct size, once determined by a jeweler. We will hold the order
    for a maximum of one week.

    Most jewelers will have the following finger sizing tools.


    Jeweler’s finger sizing tools



    The narrow set should be used if you intend on wearing a narrow band, 5mm ring width or less.

    The wider set should be used if you intend on wearing a band 6mm width or more.



    If you are measured using the narrow sizing set, and plan to wear a wide band
    (6mm or wider), you should add 0.25 or 0.5 more to the size.


    Accurate ring sizing can be tricky. Everyone has different shaped fingers and knuckles. A well fitting ring should
    sit comfortably on the finger, and have some resistance coming off. Everyone’s hands changes throughout the day,
    swelling does occur. The best time of day to have your finger sized is in the afternoon.



    If you are unsure about the exact size, it is always best to go with the slightly smaller size. We can increase
    a ring
    by a 0.25 size larger, but if it ends up too big it has to be remade.


    Jewelers use two different methods of measuring.


    Some jewelers measure from the center line of where the ring falls on the mandrel.



    Other jewelers measure from the bottom line of the ring, where it lands on the ring mandrel. At Importex, we use this method.
    The rings in the picture below measure American size 8 and 10 using our sizing method. All rings made by Importex are
    comfort fit; the inside edges are rounded for a smooth comfortable fit.



    Ring sizing mandrel


    Importex uses American/Canadian sizing to make all its rings, we offer a general size conversion table for
    other methods of sizing.

    Importex is not responsible for wrong sizes determined by customers using other companies sizing methods.
    IE: paper or string methods, etc. (These are NOT accurate)

    Please note, European or International methods of sizing do not correspond exactly to North American sizing.

    The most accurate way for European or International customers to determine their ring size is by using the
    inside diameter method. (In the comment box on the order form, give us the sizing ring diameter in mm’s to
    the second decimal point.)
    The sizing ring used for measuring should be the same width as the ring being ordered.




    Conversion Chart
    US/Canada
    Ring sizes

    Inner
    Diameter
    Inner
    Diameter
    Inner
    Circumference
    Inner
    Circumference
    British,
    Irish,
    Australian

    sizes
    Japanese
    sizes
    Swiss
    sizes
    Standard
    (inches)
    (mm)
    (inches)
    (mm)
    Equivalent
    Equivalent
    Equivalent
    0
    0.458
    11.6
    1.438
    36.5



    1/4
    0.466
    11.8
    1.463
    37.2



    1/2
    0.474
    12.0
    1.488
    37.8
    A


    3/4
    0.482
    12.2
    1.513
    38.4
    A 1/2


    1
    0.490
    12.4
    1.539
    39.1
    B
    1

    1 1/4
    0.498
    12.6
    1.564
    39.7
    B 1/2


    1 1/2
    0.506
    12.9
    1.589
    40.4
    C


    1 3/4
    0.514
    13.1
    1.614
    41.0
    C 1/2


    2
    0.522
    13.3
    1.639
    41.6
    D
    2
    1.50
    2 1/4
    0.530
    13.5
    1.664
    42.3
    D 1/2


    2 1/2
    0.538
    13.7
    1.689
    42.9
    E
    3
    2.75
    2 3/4
    0.546
    13.9
    1.714
    43.5
    E 1/2


    3
    0.554
    14.1
    1.740
    44.2
    F
    4
    4.00
    3 1/4
    0.562
    14.3
    1.765
    44.8
    F 1/2
    5
    5.25
    3 1/2
    0.570
    14.5
    1.790
    45.5
    G


    3 3/4
    0.578
    14.7
    1.815
    46.1
    G 1/2
    6
    6.50
    4
    0.586
    14.9
    1.840
    46.7
    H
    7

    4 1/4
    0.594
    15.1
    1.865
    47.4
    H 1/2

    7.75
    4 1/2
    0.602
    15.3
    1.890
    48.0
    I
    8

    4 3/4
    0.610
    15.5
    1.915
    48.7
    J

    9.00
    5
    0.618
    15.7
    1.941
    49.3
    J 1/2
    9

    5 1/4
    0.626
    15.9
    1.966
    49.9
    K

    10.00
    5 1/2
    0.634
    16.1
    1.991
    50.6
    K 1/2
    10

    5 3/4
    0.642
    16.3
    2.016
    51.2
    L

    11.75
    6
    0.650
    16.5
    2.041
    51.8
    L 1/2
    11
    12.75
    6 1/4
    0.658
    16.7
    2.066
    52.5
    M
    12

    6 1/2
    0.666
    16.9
    2.091
    53.1
    M 1/2
    13
    14.00
    6 3/4
    0.674
    17.1
    2.116
    53.8
    N


    7
    0.682
    17.3
    2.141
    54.4
    N 1/2
    14
    15.25
    7 1/4
    0.690
    17.5
    2.167
    55.0
    O


    7 1/2
    0.698
    17.7
    2.192
    55.7
    O 1/2
    15
    16.50
    7 3/4
    0.706
    17.9
    2.217
    56.3
    P


    8
    0.714
    18.1
    2.242
    56.9
    P 1/2
    16
    17.75
    8 1/4
    0.722
    18.3
    2.267
    57.6
    Q


    8 1/2
    0.730
    18.5
    2.292
    58.2
    Q 1/2
    17

    8 3/4
    0.738
    18.7
    2.317
    58.9
    R

    19
    9
    0.746
    18.9
    2.342
    59.5
    R 1/2
    18

    9 1/4
    0.754
    19.2
    2.368
    60.1
    S

    20.25
    9 1/2
    0.762
    19.4
    2.393
    60.8
    S 1/2
    19

    9 3/4
    0.770
    19.6
    2.418
    61.4
    T

    21.5
    10
    0.778
    19.8
    2.443
    62.1
    T 1/2
    20

    10 1/4
    0.786
    20.0
    2.468
    62.7
    U
    21

    10 1/2
    0.794
    20.2
    2.493
    63.3
    U 1/2
    22
    22.75
    10 3/4
    0.802
    20.4
    2.518
    64.0
    V


    11
    0.810
    20.6
    2.543
    64.6
    V 1/2
    23

    11 1/4
    0.818
    20.8
    2.569
    65.2
    W

    25
    11 1/2
    0.826
    21.0
    2.594
    65.9
    W 1/2
    24

    11 3/4
    0.834
    21.2
    2.619
    66.5
    X


    12
    0.842
    21.4
    2.644
    67.2
    X 1/2
    25
    27.50
    12 1/4
    0.850
    21.6
    2.669
    67.8
    Y


    12 1/2
    0.858
    21.8
    2.694
    68.4
    Z
    26
    28.75
    12 3/4
    0.866
    22.0
    2.719
    69.1
    Z 1/2


    13
    0.874
    22.2
    2.744
    69.7

    27

    13 1/4
    0.882
    22.4
    2.769
    70.3
    Z1


    13 1/2
    0.890
    22.6
    2.795
    71.0



    13 3/4
    0.898
    22.8
    2.820
    71.6
    Z2


    14
    0.906
    23.0
    2.845
    72.3
    Z3


    14 1/4
    0.914
    23.2
    2.870
    72.9



    14 1/2
    0.922
    23.4
    2.895
    73.5
    Z4


    14 3/4
    0.930
    23.6
    2.920
    74.2



    15
    0.938
    23.8
    2.945
    74.8



    15 1/4
    0.946
    24.0
    2.970
    75.4



    15 1/2
    0.954
    24.2
    2.996
    76.1



    15 3/4
    0.962
    24.4
    3.021
    76.7



    16
    0.970
    24.6
    3.046
    77.4




 

 

 

   
   

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