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Size guide

Choose the ring size

The Maison offers two ways to determine your finger size in order to choose the right size for your ring.

  • A few recommendations before beginning

    The size of your fingers can vary depending on the time of day. To ensure a reliable result, do not measure your fingers when your hands are cold, and take measurements, if possible, at the end of the day.
    Measurements can vary slightly between the two hands. A ring worn on the left hand will not necessarily be the exact same size as one worn on the same finger of the right hand.
    Ensure that the size chosen offers sufficient room for the ring to slide easily along the entire finger.
    Engagement rings and wedding bands are traditionally worn on the ring finger of the left hand.

  • Method 1 – Use a ring to determine your ring size

    If you already possess a Boucheron ring, sizing is very simple. The size is engraved on the interior of your ring, and it appears on the invoice.
    Moreover, know that the sizes of our rings are consistent so that your size will be similar from one collection to the next. However, in larger models (such as those from our Quatre Large and Small collection), it is preferable to select one size larger. If you have any questions, our representatives are available to assist you.

    If you do not already possess a Boucheron ring, you may refer to another ring in your possession.

    1. Print the ring sizing guide below.

    2. Make sure that the “Adjust to scale” option is not checked in the printer settings. To make sure that the printed version of the scale is consistent with the one on the screen, simply verify the measurements with a ruler.

    3. Take a ring that fits the finger on which you will wear your future Boucheron ring and place it over the circles of the ring sizing guide.

    4. As you place the ring over the various circles on the page, find the circle that best corresponds with the inner dimension of the ring. If your size falls between two circles or if you are not sure, we recommend that you select the larger size.

    5. When placing your order, please  note that Boucheron uses European sizes.

    Finger circumference in mm

    Ring size

    Europe

    United States

    United Kingdom

    Japan

    44

    44

    3

    F ½

    4

    45

    45

    3 ¼

    G

    5

    46

    46

    3 ¾

    H

    6

    47

    47

    4

    H ½

    7

    48

    48

    4 ½

    I ½

    8

    49

    49

    4 ¾

    J ½

    9

    50

    50

    5 ¼

    K

    10

    51

    51

    5 ¾

    L

    11

    52

    52

    6

    L ½

    12

    53

    53

    6 ¼

    M ½

    13

    54

    54

    6 ¾

    N ½

    14

    55

    55

    7 ¼

    O

    15

    56

    56

    7 ½

    P

    16

    57

    57

    8

    P ½

    17

    58

    58

    8 ¼

    Q ½

    18

    59

    59

    8 ¾

    R

    19

    60

    60

    9

    S

    20

    61

    61

    9 ½

    S ½

    21

    62

    62

    10

    T ½

    22

    63

    63

    10 ¼

    U ½

    23

    64

    64

    10 ¾

    V

    24

    65

    65

    11

    W

    25

    66

    66

    11 ½

    W ½

    26

    67

    67

    11 ¾

    X ½

    27

    68

    68

    12 ¼

    Z

    28

    69

    69

    12 ½

    Z ½

    29

    70

    70

    13

    30

    71

    71

    13 ¼

    31

  • Method 2 – Measure your finger

    1. Take a length of string or cut a paper band into a thickness of 1cm.

    2. Roll the string or paper around the thickest part of your finger.

    3. Mark the spot where the string or paper overlaps using a pen.

    4. Unroll the string or paper band and place it on a flat surface.

    5. Using a ruler, measure the distance that separates the end of the string or paper band and the dot that you marked.

    6. Refer to the correspondence table to determine with what size the measurement corresponds. If you are hesitating between two sizes, we recommend that you choose the largest.

    This guide should be used for information only.
    If you have any questions, our representatives are available to assist you.