How to Measure Your Ring Size | Love Grown Diamonds

You may have an idea of your perfect ring, but there’s only one problem – you don’t know what size ring you’ll get. Whether you’re buying a ring for yourself or surprising your partner with a special gift, choosing the right size is important. So read our guide to measuring rings, from DIY methods to sneaky methods, to find out your partner’s ring size without them knowing anything.

Find out the different sizes of rings

First, rings come in a variety of sizes. In England, rings are on the A-Z scale and are measured in terms of their inner circumference and ring diameter. Ring size A has a circumference of 37.8 mm and Z 68.5 mm.

It hardly differs from international standards. Therefore, be careful when buying rings. UK and Australia use the same character scale while other countries use the numbered scale. You can view our conversion table if you need to draw the British equivalent for rings from another country.

Ring size chart (UK)

Ring Size	Diameter (mm)	Circumference (mm)
H	14.7	46.1
I ½	15.3	48
J	15.5	48.7
K ½	16.1	50.6
L ½	16.5	51.9
M ½	16.9	53.1
N ½	17.3	54.4
P	17.9	56.3
Q	18.3	57.6
R	18.8	58.9
S	19.2	60.2
T	19.6	61.4
U	20	62.7
V	20.4	64
W	20.8	65.3
W ½	21	65.9
Y	21.6	67.8
Z	21.8	68.5
Z+1	22.4	70.4

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Ring Size

Did you buy a gift? When designing your ring size, keep in mind the following to ensure you get the most accurate measurement:

Make sure your fingers are warm before taking measurements as they are about half their size when cold.

When it’s hot, your fingers may be slightly enlarged. Take several readings at different times of the day for best overall fit.

Pay attention to the shape of your fingers – the width of your knuckles, for example, can affect the size of the ring that suits you best. You can order an in-store consultation or online to discuss any sizing issues with our team.

Measuring your own ring size

The easiest and most accurate way to measure your ring finger is to go to one of our stores to get a free professional ring size by our team.

If you feel more comfortable determining your ring size in the comfort of your home, contact us to request our home ring size measurement kit. You can also download and print our rings to find the right tour for you. You can use a ring that you are already wearing and just compare the dimensions or measure yourself with a ruler or a piece of string.

Just follow these steps to get the most accurate self-measurement:

Option 1

Print our A4 guide to set paper sizes up to 100 percent

Cut a 6 inch length of string

Wrap the meat at the base of your finger

Use a pen to mark the wires at the junctions

Measure the length from the end of the string to the ruler mark with a ruler to find your thickness

Match this to your ring size in the size chart!

Option 2

Reprint the A4 paper formatting guide and scale it up to 100 percent

Cut the sizing tool and make a gap along the line in the sizing section, read here

Place the tool around the base of your finger and pull the tip through the slot

Fasten it through the tongue like a buckle

Pull it against your finger

Make sure you can comfortably slide the tool onto your ankle

See which letter the reading section points to here

Now you have your ring size!

How to measure your partner’s finger

Planning a surprise proposal? Or perhaps you want to surprise a family member or friend with a new ring for their birthday or over the festive season? Luckily, there are a few ways to figure out someone’s ring size without spoiling the surprise.

The easiest and most accurate way of gauging someone’s ring size is to borrow a ring they already wear on their ring finger and take it into store. Be careful not to pinch a ring they wear on a daily basis though – they’ll just worry that they’ve lost it, and you might have to reveal your secret sooner than you’d planned. Go for a ring that they wear frequently (so you know it fits and is comfortable), but won’t immediately call out a search party to find if they notice it’s missing.

If you really can’t smuggle any of your loved one’s rings away to a shop, see if you can borrow one for long enough to use our ring sizing tool. You could also borrow it for just long enough to press into a bar of soap. Then you can use the imprint on the soap to measure the ring size. This will still give you a good idea of the size you need to buy, and it won’t cause any missing ring meltdowns.

If they’re a particularly heavy sleeper, you could get away with using string to measure their finger. Take a piece of string and wrap it around their ring finger, marking the place where the ends join with a pen. Stealthily remove the string and take it to your jeweller for the perfect fit!

Finally, if your proposal isn’t completely out of the blue, or you want to ensure your family member receives a ring they’re truly happy with, you could pop into a jewellers together to browse and try on a few rings. As well as figuring out their size, it’s a great way of getting a feel for what style they’d like the best. Remember to take notes.

Ring resizing

Don’t worry if you don’t get quite the right size. We offer a resizing service on all Vashi rings, with a ten-day turnaround time. The first resize is complimentary, and if you need it adjusted again in the future, it will be £40. We can alter the fit by up to three sizes up or down from the original ring size.

Good luck if you’re secretly trying to figure out a ring size – and don’t hesitate to book a personal in-store or online consultation if you need any more support with choosing the perfect ring