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A close-up of a wrist wearing the Coil Wave Diamond Bangle in Yellow Gold and Platinum, featuring wavy rows of sparkling natural diamonds against a softly lit background with gentle shadows.

Serpentine Sizing Guide

A hand with neatly manicured nails wears the East-West Set Emerald Cut Diamond Wraparound Ring with Pavé Center in yellow gold, resting on soft, light-colored fabric.
A close-up of a wrist wearing the Coil Wave Diamond Bangle in Yellow Gold and Platinum, featuring wavy rows of sparkling natural diamonds against a softly lit background with gentle shadows.

Serpentine Sizing Guide

Size Guide

The Hands-on Method
1. Grab a flexible tape measure or length of string.
2. Wrap it around the wrist you will wear it on—if you’re creating a bracelet stack, consider where on your wrist the bracelet will sit—and mark the place where it joins.
3. Lay your string or paper strip on a flat surface and use a ruler to measure the length up to the mark.
4. Share the length in inches with our team.

Measure an Existing Bracelet

1. Find a bracelet with a length that you like to wear.
2. Lay the bracelet on a flat surface and use a ruler to measure the length up to the end.
3. Share the length in inches with our team, along with a photo of the existing bracelet beside the ruler for our reference.

The Hands-on Method
1. Necklaces vary by chain length. The circumference of your neck and whether the necklace has a pendant will impact how your necklace sits on its own and with other styles.
2. Measure and cut a piece of string to the same length as the necklace you’re interested in.
3. Place it around your neck to see where it falls. Consider if the necklace has a pendant, or whether the necklace has a flexible or stiff chain that will affect the way it drapes.
4. Repeat the process to see how necklaces of different lengths may look together.

The Hands-on Method
1. Grab a soft tape measure or length of string.
2. Wrap it around the wrist you will wear it on—if you’re creating
a bracelet stack, consider where on your wrist the bangle will sit—and mark the place where it joins.
3. Lay your string or paper strip on a flat surface and use a ruler
to measure the length up to the mark.
4. Match the length above using our size chart above to find your correct Serpentine bangle size.

Measure an Existing Bangle
1. Grab a flexible tape measure of length of string.
2. Measure the interior diameter and interior width.
3. Measure the interior circumference.
4. Share the dimensions with our team, along with a photo of the existing bangle across the ruler for our reference.

Request a Bangle Sizer
Please reach out to our client services team (clientservices@serpentinejewels.com) who will mail you a metal bangle sizer for $25.
We kindly ask you to return the sizer(s) once you’ve determined your ideal size.

Serpentine GuideInterior Circumference (in)
1306"
1106.25”
906.5"
706.75"
507"

The Hands-on Method
1. Grab a soft tape measure or length of string.
2. Wrap it around the finger you’ll wear your ring on (if you’re creating a ring stack, consider where on your finger the ring will sit) and mark the place where it joins.
3. Lay your string or paper strip on a flat surface and use a ruler to measure the length up to the mark in millimeters (mm).
4. Match the length above using our size chart above to find your correct ring size. If you are ordering a thicker ring, we recommend choosing a ¼ size larger than your usual size to ensure a comfortable fit.

Measure an Existing Ring

1. Choose a ring that already fits your finger well. If you’re creating a ring stack, also consider where on your finger the new ring will sit. Our fingers typically change size depending on where you measure them.
2. Measure the interior diameter of the ring in millimeters (mm).
3. Use our measurement chart above to match the size of your ring to the closest size in millimeters. If you are ordering a thicker ring, we recommend choosing a ¼ size larger than your usual size to ensure a comfortable fit.

Request a Ring Sizer
Please reach out to our client services team
(clientservices@serpentinejewels.com) who will mail you a metal ring sizer for $25.

US SizeInterior Diameter (mm)Circumference (mm)
314.0744.2
3.2514.2744.8
3.5 14.48 45.5
3.7514.6846.1
414.8846.8
4.25 15.0947.4
4.515.2948
4.75 15.49 48.7
515.7 49.3
5.2515.9 50
5.5 16.1 50.6
5.7516.31 51.2
6 16.51 51.9
6.25 16.71 52.5
6.5 16.92 53.1
6.75 17.12 53.8
717.32 54.4
7.25 17.53 55.1
7.5 17.73 55.7
7.75 17.9356.3
818.14 57
8.25 18.34 57.6
8.5 18.54 58.3
8.75 18.75 58.9
9 18.95 59.5
9.25 19.15 60.2
9.5 19.35 60.8
9.75 19.56 61.4
10 19.76 62.1
10.25 19.96 62.7
10.5 20.17 63.4
10.75 20.37 64
11 20.57 64.6
11.25 20.78 65.3
11.5 20.98 65.9
11.75 21.1866.6
12 21.39 67.2
12.25 21.59 67.8
12.5 21.79 68.5
12.75 22 69.1
13 22.2 69.7
13.25 22.4 70.4
13.5 22.61 71
13.75 22.81 71.7
14 23.01 72.3
14.25 23.22 72.9
14.5 23.42 73.6
14.75 23.62 74.2
15 23.83 74.8
15.2524.0375.5
A hand with neatly manicured nails is shown against a green textured background, wearing the Three Stone Halo Oval Diamond Ring on the ring finger.