Sizing Guide

Thank you for considering Eternity Collars. We appreciate your business and want to ensure you have a remarkable experience with our products. We’ve developed this sizing guide to help you find the best fit for your necklace, anklet or bracelet. While we tried to make our guide as comprehensive as possible, we understand you may still have questions, so please do not hesitate to contact us or call 888-291-2630 and we will do our best to assist you. 



For best results, use a flexible tailor’s tape to measure your neck, ankles and wrists where you would like the collar to sit. These are often available at your local drug store, discount retailers and sewing supply stores.
As an alternative to a tailor’s tape, you can also use a piece of flexible wire to measure the circumference and then transfer the measured wire to a ruler or measuring tape to get your measurement. Wire allows you to feel exactly where you would like the jewelry to sit on you neck, wrist, or ankle, without stretching.
All of the sizes we provide are based on the approximate INTERNAL CIRCUMFERENCE of our products. The product you select must have an interior circumference larger than your neck, wrist or ankle measurement. 


Using measuring tape or flexible wire, measure the part of your neck where you would like the collar to sit. With the wire or measuring tape on your neck, flex your neck muscles, and move your head around to make sure that you have plenty of room to breathe and move. Sometimes this means you need to go up a size anywhere from .25 inch to 1 inch. Then use the corresponding measurement on the guide below under the necklaces/collars tab to find the correct size.


Measure below the wrist bone where you would normally wear a bracelet. Allow for some movement, but not enough to slip off the hand. Then use the corresponding measurement on the guide below under the bracelets tab to find the correct size. 
To determine how big is too big for your bracelet, fold your thumb across your hand and measure at the widest part of your hand. This is the place for the bracelet to be most likely to slip off, so you should order a size smaller than this.


Using measuring tape or flexible wire, measure the part of your ankle where you would like the anklet to sit. Move your foot around with the wire on it to make sure you have enough room to move freely while wearing the anklet. Then use the corresponding measurement on the guide below under the anklets tab to find the correct size.

A Note About Sizing and Returns:

Please take into consideration that all bodies are different, and our sizing guide is approximate to where most people would like their jewelry to sit on their necks, wrists, or ankles. Since Eternity Collars cares about your comfort and satisfaction, we have a robust returns policy to allow you to get exactly the fit you want.

Size Collar Inside Circ. Fits Neck Size (cm) Fits Neck Size (in)
Petite 30.5cm 12.0in 26 - 29 10.25 - 11.25
XX-Small 33.0cm 13.0in 29 - 31 11.25 - 12.00
X-Small 34.5cm 13.5in 31 - 33 12.00 - 12.75
Small 36.5cm 14.5in 33 - 35 12.75 - 13.5
Medium 38.5cm 15.0in 35 - 37 13.5 - 14.25
Medium-Large 40.5cm 16.0in 37 - 39 14.25 - 15.00
Large 43.0cm 17.0in 39 - 42 15.00 - 16.25
X-Large 45.0cm 18.0in 42 - 44 16.25 - 17.00
XX-Large 47.0cm 18.5in 44 - 46 17.00 - 18.00
XXX-Large 51.0cm 20.0in 46 - 50 18.00 - 19.50
Size Interior Circ. Fits Ankle Size (cm) Fits Ankle Size (in)
X-Small 21.0cm 8.25in 17 - 20 6.50 - 7.75
Small 22.0cm 8.50in 20 - 21 7.75 - 8.25
Medium 23.0cm 9.00in 21 - 22 8.25 - 8.75
Large 25.0cm 9.75in 22 - 24 8.75 - 9.50
X-Large 26.5cm 10.5in 24 - 26 9.50 - 10.00
XX-Large 29.0cm 11.5in 26 - 28 10.00 - 11.00
Jumbo 32.0cm 12.5in 28 - 31 11.00 - 12.00
Size Interior Circ. Fits Wrist Size (cm) Fits Wrist Size (in)
X-Small 15.0cm 6.00in 14.0 - 14.5 5.50 - 5.75
Small 16.5cm 6.50in 14.5 - 16.0 5.75 - 6.25
Medium 18.0cm 7.00in 16.0 - 17.5 6.25 - 6.75
Large 18.5cm 7.25in 17.5 - 18.0 6.75 - 7.00
X-Large 19.0cm 7.5in 18.0 - 18.5 7.00 - 7.25
XX-Large 20.0cm 7.75in 18.5 - 19.5 7.25 - 7.50

Eternity | Online Retailer and Manufacturer of Designer Locking Eternity Collars, Jewelry and Accessories
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If you’re not 100% satisfied, we will gladly accept your return for any reason up to 365 days from the date of purchase for a store credit or a full refund. We never charge any re-stocking fees or penalties for returns. Learn More