Jewelry Sizing Guide: Ring, necklace, earrings and bracelet sizing charts

Jewelry Sizing Guide: Ring, necklace, earrings and bracelet sizing charts

Jewelry Sizing Guide: ring, necklace, earrings and bracelet sizing charts.


Fun personal story: when my husband asked me to marry him, he planned a special trip to LA. When the moment came, he put the ring on my finger and it was HUGE on me. I had to use the entire trip with the ring on my middle finger because otherwise, it would had fallen off. So every picture I have from the trip, I have the ring on my middle finger (no pun intended). Even though he planned the proposal months ahead of the trip, a pretty important part failed: ring sizing

The problem? He got my ring size from a ring I had on my jewelry box. And, although this is recommended to figure out your partner’s ring size, he took a ring that I never use, and when I do, I put it on my middle finger.

So, the moral of this short story is, if the ring is not for you and it is a gift, option number one is to ask for ring sizing directly from the person, and if that’s impossible, option number 2 is to grab a ring from that person's collection - however, you have to make sure the ring is similar to the one you are purchasing, especially the destined finger.

Mastering sizing

If you ever have bought rings, bracelets, and jewelry in general, you would know that these items usually come in different shapes and sizes.

In a physical jewelry store, jewelers have Sizing Tools to make sure the jewel you are purchasing is perfectly fitted for you.

When buying jewelry online, this may be a problem. And since this year a lot of things have migrated to digital, certainly you have gone through this.

There is nothing more frustrating than buying something online and when it arrives, it doesn’t fit you, and honestly, in my particular case, that happens a lot.

Thing is, we are not always the same size. And having a jewel that fits you right is extremely important, especially when it comes to rings.

The risk of having a ring too small is pretty obvious, it would not fit you. And having a ring that fits you too wide, is risky, because the ring could fall off your finger at any time.

Jewelry sizing is really important, and whether if you are purchasing jewelry for yourself or another person, sizing is essential. Here is our simple online guide for finding your proper sizing from the comfort of your home.

We as a jewelry store worry about our costumer experience, so we created this article so you can't go wrong with sizing at home. 

Tools you need for sizing jewelry at home, especially rings: 

  • Flexible measuring tape
  • A string
  • Paper 
  • A pen 
  • A ruler
  • Other jewelry  


Maybe this is the most important piece of jewel to be measured. The rule for ring sizing is that it should fit comfortably, but it has to be tight and loose enough so that it can slide over the knuckle with some resistance without falling off.

In the U.S. ring sizes are a scale of numbers, typically from 3 to 13. Women’s sizes most of the time go from 3 to 9, being the average between 6 and 7, while men’s ring sizes are from 8 and 13, and ]most men are size 9 or 10.

The unit corresponded to the width is on the millimeter scale, starting with size 3 equals a finger that is 14.1 millimeters across, and the sizes climb from there.

Here’s a chart for reference:

Internal Diameter (MM)












US/Canada Ring Size













Now that you know that rings come in various sizes, it’s time to figure out what’s yours. Follow these steps carefully to make sure you get the right size:

Sizing with string or paper:

  1. Take a string of paper about 1-inch width, or a string.
  2. Wrap it around the finger where you’d like your ring to be
  3. Tight enough the paper or string, find your best fit.
  4. Mark the spot where the paper or string meets and measure the distance in mm with a ruler
  5. Do this step at least 3 times to make sure you got the right measure
  6. Compare your result with the chart above.

Green Crystals Stainless Steel Ring

Get the size from another ring:

You can also get this measure from a ring. If you are purchasing for yourself, we strongly recommend using the measurement method instead of trusting the size you would get for another ring.

But, if measuring is out of your possibilities , or, in the most common cause, the ring is destined to be a gift, you can use this method. Keep in mind that it is ESSENTIAL that you use a ring that fits the exact finger and position as the one you’ll like to purchase, and the rings should be as similar as possible in regards to the width.  

  1. Place your ring on a piece of white paper
  2. With a pen, mark the inner circumference of the ring, do this 2 or 3 times.
  3. Measure the circumference with a ruler
  4. Repeat the process a couple of times to make sure you are drawing/measuring right
  5. Compare your measurement results with the size chart.

7 Tips to consider when measuring your ring at home:

  1. Your knuckle: a lot of people suffer because of their knuckles. When your finger circumference is more or less the same all over the finger, no problem. But not every hand is equals, and some fingers have a knuckle that’s larger than the rest of the fingers. In this case, measure your knuckle diameter and your finger diameter, and use the size in between. Remember, your ring must be wide enough to slide over your knuckle.
  2. Take into account temperature: sizes fluctuate with temperatures, overheat makes your finger swollen, and cold makes your finger smaller.
  3. Dominant hands in general are slightly larger. Measure the correct hand and the right finger.
  4. Rings with a wider band will fit a bit tighter, that’s why if you are getting the size from measuring a ring it’s so important to have a ring as similar as possible to the one you intend to purchase
  5. If your result size falls in-between two sizes, and we don't have on stock the half size, we recommend buying the larger size. For example, if your size is 7.3, go for 7.5. And if it's 7.8, go for 8. If we don't have the half-size (7.5 in this example) go for 8. 
  6. Alcohol and salt can cause your fingers to swell. Do not attempt to measure after a night of cocktails 

Regarding temperature, your size could change throughout the day. We recommend measuring your finger at the end of the day, your body expands during the day due to the ingestion of liquids, food, and your activity. 

Ultimate tip: adjustable rings

In case you are giving away a ring, and after reading this you are a little stressed about sizing, or you just do not have access to the size of that person, here’s a practical solution for you: an adjustable ring.

They’re trending right now, you’ll find tons of gorgeous models like these from our store, and, important to you, they adjust to people's fingers. So you don’t have to worry about ring sizing.

If you don’t have the ring size or you are not sure about it, this is the perfect gift.  Here at Jewels Genie we have open or adjustable rings for any style.


Take into account international sizing:

Remember this: U.S. and Canada's sizes are not worldwide sizes.

Just like shoes, the sizing method varies between one country and another. Here’s a quick comparison chart between US sizes and other countries:  

U.S. Size

Japanese Size

U.K. Size

German Size

Swiss Size



J ½

15 ¾




L ½

16 ½

12 ¾




17 ¼     






16 ½








T ½


21 ½



V ½

20 ¾





21 ¼

27 ½


Bracelet sizing is not as accurate or necessary as ring sizing.

Not every bracelet needs to be measured, it depends on the model of the bracelet.

Also, bracelets have the benefit that they can and should fit a bit lose, so that allows us to play with the circumference of the bracelet.

That said, some bracelets need to be measured to make sure of an appropriate and comfortable fit.

Sizes in bracelets, on the contrary of rings, come in inches or cm. Women’s sizes go from 7” to 9”, and men’s sizes tend to go from 8” to 9-1/2".

The measure can be done with a measuring flexible tape, with a string, or a plain strip of paper.

Always measure your wrist below the wrist bone, just where you would wear your bracelet

If using a paper or a strip, mark where the paper meets it again, and measure with a ruler. And if using a measuring flexible tape, just take note of the diameter of your wrist.

The result will be your wrist size.

Now, your bracelet size will depend on how would you like the bracelet to fit. Just add the inches on the chart below to correspond to the fit you prefer:


Snug Fit

Comfort Fit

Loose Fit


1/4" - 1/2".

3/4" to 1".

1 1/4".

Another tip is that you would like to check how your bracelet is, if has bulky beads or charms all around the bracelet, you’ll like to choose the loose fit. Why? Because the bead will take up space inside of the bracelet.

For example, for this kind of bracelets is recommended to use the loose fit. 

Measuring bracelets for gifts

Is your purchase is destined to be a gift, and you have access to a bracelet they own, you can do the following steps:

  1. Find the bracelet that fits her or him correctly. Try to get a bracelet that has as many similarities as possible with the one you would like to purchase.
  2. Set it down flat
  3. Measure with a ruler the length in cm or mm, including the clasp and the end.

There is another option for gifts: A bracelet that fits everyone’s wrist

  1. Bracelet with sliding knots
  2. Adjustable closure, where you choose the length you prefer
  3. Stretch bracelets
  4. Open bracelets

This kind of bracelets allows the wearer to adjust the preferred length, so they work perfectly for gifts.

We selected our favorite adjustable bracelets from our store:

Stainless Steel Open Bracelet

If you have no access to a bracelet of that person, and still want to get him or her a bracelet that comes in sizes, here is a chart with the average sizes for women and men:


Wrist measurement (inch)

Wrist measurement (inch)

Extra Small

5.0 - 5.5

12.7 – 14


1.5   – 6.0

14 – 15.2


6.0 – 6.5

15.2 – 16.5


6.5 -7.0

16.5 – 17.8

Extra Large

7.0 – 7.5

17.8 – 19




Extra Small

5.75 – 6.25

14.6 – 15.9


6.25 – 6.75

15.9 – 17.1


6.75 – 7.25

17.1 – 18.4


7.25 – 7.75

18.4 – 19.7

Extra Large

7.75 – 8.25

19.7 – 21.0

Ankle Bracelet

For the ankle bracelet, the recommendation it’s to measure the ankle with the same method we did with the wrist and add ½ inch or 1 inch to your measurement

Some stores classify their bracelets with sizes S, M and L. Here, at Jewels Genie, we prefer to use CM, or MM to indicate our costumers the bracelet size, so they can determine which size fits best for them.



In the jewelry industry is uncommon to see earring and necklaces being sold by sizes, probably because it’s a jewel that normally adapts to every kind of body.

So, if you are purchasing earrings and necklaces, sizes shouldn’t be a problem for you. You can confidently shop without worrying about fitting.

In this article, we are not referring to sizing for piercings, because piercings do have Gauge sizes for needles.  

Even though that’s true, we recommend our customers to check the length of the earring or necklace, to ensure that the customer receives exactly what they was expecting.

There’s nothing more disappointing than ordering something online, having an expectation, and get something you weren’t expecting of.

So, when shopping for necklaces and earrings, imagine how would you like that jewel to fit you.

For example, if you want a long necklace, take note of the length of the necklace you are looking for, and with a measurable flexible tape, compare it with your neck and body, to see how that piece will fit you and if it fulfills your expectations. Same with earrings.

Another test for necklaces is to take a cord, measure it with the length of the necklace, and put it around your neck.

And for ears, take a piece of paper, and make a rectangular with the length corresponding to the desired earring, put it on your ear, and take a look of yourself in the mirror.

If you are buying earring hoops, you probably have your preferences whether you like a big or a small hoop. And expecting one of those and receiving the other could be disappointing.

This is the safest way to get jewelry online, and whether or not earrings and necklaces do not come in sizes, knowing the size of the jewel and knowing how it would fit your body is as much important as size because otherwise you could purchase something thinking is a choker and ending up with a long necklace.

Here's a referential chart to visualize how a necklace would look according to the length. Keep in mind that this could vary depending on your body type:

For Women: 

 Chocker length 


At collar bone


A few inches below collar bone


At or above the neck line


Below the neckline





Sizing in jewelry is vital. It will determine if the piece fits us or not. And even when some jewels don’t come in sizes, it’s important to know how they would fit our body. We all have different necks, height, finger, and ears; and often we have preferences about jewels (some people just doesn’t like big earrings or long necklaces)

And when it comes to rings or bracelets, not proper sizing would not only result in having something that you don’t like how it fits you but not fitting you at all.

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