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    LAREINE Client Services

    Jewelry Size Guide

    A precise fit supports comfort, proportion and the intended character of every jewel.

    Use this guide as a careful starting point. For an important or bespoke piece, professional measurement remains the preferred choice.
    Find your fit

    Measure in millimetres, repeat the measurement and consider how the construction of the jewel influences the way it will be worn.

    Ring sizing

    Measure your ring size

    Ring size is most reliably determined by the inner circumference of a well fitting ring or by measuring the intended finger. The ISO convention expresses ring size as inner circumference in millimetres.

    Measure the exact finger on the hand where the ring will be worn. The same finger can differ between the left and right hand.

    Method 01

    Measure an existing ring

    1. Select a ring that fits the intended finger comfortably.
    2. Place it on a flat surface.
    3. Measure the internal diameter from one inner edge to the opposite inner edge.
    4. Record the result in millimetres without including the metal.
    5. Compare the diameter with the conversion chart below.
    Inner circumference ≈ inner diameter × 3.1416
    Method 02

    Measure your finger

    1. Use a narrow strip of paper or a nonstretching measuring tape.
    2. Wrap it around the widest part the ring must pass over.
    3. Keep it comfortably close without pulling tightly.
    4. Mark where the ends align.
    5. Measure the length in millimetres and repeat the process.
    Measured millimetres ≈ EU or ISO ring size
    Measure at the right time

    Measure near the end of the day when the hands are at a normal temperature.

    Repeat the result

    Take at least two measurements on separate occasions before ordering.

    Between two sizes

    Choose the larger size unless the design or a LAREINE adviser indicates otherwise.

    International reference

    Ring size conversion

    Conversions between national systems are approximate. Manufacturing tolerances, ring width and local sizing conventions can produce small differences.

    EU / ISO circumferenceInner diameterRussiaUS approximateUK approximate
    4414.0 mm143
    4614.6 mm14.5H
    4815.3 mm15.5
    5015.9 mm16K
    5216.6 mm16.56
    5417.2 mm17N
    5617.8 mm18
    5818.5 mm18.5Q
    6019.1 mm19
    6219.7 mm2010T
    6420.4 mm20.510¾
    6621.0 mm2111½W
    6821.6 mm21.512¼
    Design changes the fit

    Wide bands generally feel tighter than narrow bands. Ring stacks, sculptural forms and rings with a heavy central stone may require a different size. Contact LAREINE before ordering if the design is wide, rigid or intended to be worn as part of a stack.

    Bracelet sizing

    Measure your wrist

    Flexible bracelets are selected from wrist circumference and the preferred amount of movement. Rigid bangles require an additional measurement because the hand must pass through the opening.

    Flexible bracelet

    Wrap a soft tape closely around the wrist at the point where the bracelet will sit. Record the wrist circumference without adding space. The appropriate allowance is then selected according to the preferred fit and the construction of the bracelet.

    Rigid bangle

    Bring the thumb toward the little finger as if passing the hand through a bangle. Measure around the widest part of the compressed hand. Compare this measurement with the internal circumference or diameter stated for the specific bangle.

    Close fit

    Add 0.5 to 1 cm

    Minimal movement. Suitable only when the design and clasp allow comfortable wear.

    Comfort fit

    Add 1 to 1.5 cm

    A balanced everyday fit for many flexible chain and link bracelets.

    Relaxed fit

    Add 1.5 to 2 cm

    Greater movement on the wrist. Consider the weight and profile of the jewel.

    Cuffs and structured bracelets

    Do not apply a simple chain bracelet allowance to cuffs or oval structured bracelets. Their opening, internal shape and intended position on the wrist must be considered individually. Refer to the dimensions of the specific creation or ask LAREINE Client Services.

    Necklace sizing

    Choose the length

    Necklace length is measured from end to end, including the clasp. The final position depends on neck circumference, height, body proportions, clothing and the weight of the pendant.

    35 cm
    Close to the neckA short position that depends strongly on individual neck circumference.
    40 cm
    Base of the neckA refined short length for many delicate necklaces.
    45 cm
    Upper collarboneA versatile length commonly chosen for pendants.
    50 cm
    Below the collarboneAllows more space and can accommodate a larger pendant.
    60 cm
    Upper chestA longer line suitable for layering and prominent pendants.
    75 to 90 cm
    Long necklaceA dramatic length whose final position varies considerably.
    Test the length before ordering

    Use a ribbon or string cut to the stated necklace length and place it around the neck. If a pendant will be added, attach an object of similar weight to understand how the chain may settle.

    Before confirming

    Important considerations

    A measurement guide is indicative. The final size should reflect the precise construction, intended styling and personal comfort.

    01

    Temperature and time

    Fingers and wrists can change with temperature, activity and time of day. Avoid measuring when the hands are unusually cold, hot or swollen.

    02

    Gifts and surprises

    Measure a jewel already worn comfortably by the recipient. Confirm that it fits the same finger, wrist position or preferred necklace placement.

    03

    Resizing limitations

    Some eternity rings, complex settings, engraved pieces, rigid bracelets and stone intensive designs cannot be resized or have a limited adjustment range.

    Personal assistance

    Let us confirm your size

    Send your measurements, the jewel you are considering and your preferred fit. A LAREINE adviser will help you review the most appropriate option before ordering.

    All measurements and conversions are indicative. The dimensions stated for the individual LAREINE creation and professional fitting guidance take precedence.