How to measure your ring size

How to measure your ring size

One of the most common questions we get asked as jewellers is, ‘how do you know your ring size’? There’s plenty of ways to measure your ring size, whether that’s using an existing ring that fits well already, or by purchasing our ring sizer – which measures fingers from size A to Z. Learn more from this detailed ring size guide for advice on how to know your ring size.



Infinity Twist Round Diamond Engagement Ring in 18K White Gold

How to measure your ring size at home

Whether you’re simply wondering what your own ring size is, or you’re searching for your partner’s ring size to plan the perfect surprise proposal, there are a few top tips you can conduct at home:

  • Measure the inside of another ring that fits – by using a tape measure, you could measure another ring which you know fits well. That way, you can take the measurement to the jewellers and they can advise you what size it is.

  • Measure multiple times – measuring about 3 or 4 times at different points in the day will provide the most accuracy – as your finger is at it’s largest at the end of the day, and when you are in a warm environment.

  • In between sizes? – if the ring falls between two sizes, it’s always advised to order the larger size up.

  • Shining Diamonds ring sizer – from £1, use our ring sizer to measure fingers from size A to Z – letting you find out your ring size in moments.

Planning a surprise proposal? Learn more about how to secretly discover your partner’s ring size from our handy guide.

How to know your ring size – does it fit properly?

Often, when we wonder what our ring size is, it’s important to how to know if a ring fits properly. Some of the key points to remember when trying to decipher ring size include:

  • Fit – the ring should be snug enough that it won’t fall off, but loose enough to slide up and over your knuckle with ease.

  • Fluctuation – it’s important to remember when you’re trying on rings, that temperature can affect your finger size. For example, if you’re in a warm room, your fingers are likely to have swollen more than if you were outside in the cold. It can also fluctuate due to activities you are doing, or your diet.

Average ring size for women

The average ring size for women in the UK is between size L and size N – with the most common ring size for engagement rings being size L.

Average ring size for men

S or T are typically the most popular ring size for men in the UK. The most commonly purchased men’s rings range between size P and U.


Round Solitaire Diamond Ring in 18K White Gold

What if I order the wrong size ring?

Shining Diamonds offer a ring resizing service where you can get 90 days free resizing*. Simply return your item using the delivery returns instructions and notify us with the package tracking number. You will be then notified via email or phone for payment, and your resized ring will be posted out. It’s important to note that the resizing process works by adding or removing small amounts of metal, which can mean your ring may be slightly thicker or thinner after resizing.

Now you know your ring size, or your partner’s ring size, browse through our varied selection of diamond engagement rings now from Shining Diamonds. Still need help deciding which one to buy? Our guide on how to choose an engagement ring has you covered.