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Finding the correct ring size is one of the most important steps when choosing a ring. Whether you're treating yourself or buying a meaningful gift, the right fit ensures your ring is both comfortable and enjoyable to wear every day.
At Mistry Gems, our handcrafted sterling silver gemstone rings and spinner rings are available in a wide range of UK, US and international sizes. This guide will help you measure your finger accurately, understand ring size conversions and choose the perfect fit with confidence.
If you're still unsure after using this guide, we're always happy to help. Simply get in touch before placing your order and we'll be happy to advise.
There are several easy ways to measure your ring size from the comfort of your own home. For the most accurate results, we recommend using a reusable ring sizer, but you can also measure a ring you already own.
Our reusable UK and US Ring Multi-Sizers provide the easiest and most accurate way to measure your ring size at home.
Simply place the ring sizer over your finger and gently tighten it until it fits comfortably. It should slide over your knuckle with slight resistance but should not feel tight or uncomfortable.
If you already own a ring that fits the correct finger comfortably, you can use it to determine your size.
Option A – Measure the Internal Diameter
Using a ruler or digital callipers, measure the inside diameter of the ring (from one inside edge to the opposite inside edge) in millimetres.
For the most accurate result, measure as precisely as possible, as even 0.1 mm can affect the ring size.
Option B – Use a Ring Mandrel
A ring mandrel is an inexpensive jewellery measuring tool that can be purchased online.
Simply slide your existing ring onto the mandrel and read the size where the ring sits naturally.
If you're purchasing a ring that's wider than approximately 2–3 mm, please let us know your ring size together with the approximate width of the band if possible.
Wider rings naturally fit more snugly than narrow bands because they cover more of the finger. Depending on the width of the band and your finger shape, we may recommend choosing approximately ¼ to ½ size larger for the most comfortable fit.
This is particularly important for our Spinner Rings and other wide band styles. If you're unsure, Contact Us and we'll be happy to offer personalised sizing advice before you place your order.
If you'd rather have your finger professionally measured, most independent jewellers will happily size your finger using a ring gauge, often free of charge.
For the most accurate result, ask to be measured using a ring that is a similar width to the one you intend to purchase. This is particularly important for wider band designs such as spinner rings, which generally require a slightly larger size than narrow bands.
If you're still unsure after being measured, simply contact us before placing your order. We'll be happy to help you choose the most suitable size for your chosen design.
Choosing the correct ring size isn't just about measurements. Everyday factors can affect the fit of your ring, so keeping these simple tips in mind will help you achieve the most comfortable fit.
✔ Measure your finger at the end of the day when it is naturally at its largest.
✔ Avoid measuring when your hands are cold, as fingers can temporarily become smaller.
✔ Don't measure immediately after exercise, as your fingers may swell slightly.
✔ Measure your finger two or three times and compare the results for greater accuracy.
✔ Your dominant hand is often slightly larger than your non-dominant hand, so always measure the finger on which you intend to wear the ring.
✔ A correctly fitting ring should slide over your knuckle with gentle resistance. It should feel secure enough not to fall off, while remaining comfortable to remove.
Choosing a ring as a surprise doesn't have to be difficult.
If you're buying for someone else, here are a few helpful tips:
• Borrow a ring they already wear on the correct finger and measure its inside diameter.
• Ask a close friend or family member if they know their ring size.
• If you're unsure, it's usually better to choose a slightly larger size rather than one that may be too tight.
• If you need advice before placing your order, we're always happy to help.
If you're still uncertain about your ring size after using this guide, please don't worry.
Simply contact us before placing your order and we'll be happy to help you choose the most suitable size for your chosen design. This is particularly helpful if you're purchasing one of our wider band styles, such as a Spinner Ring, where sizing recommendations can differ slightly from standard rings.
Every piece in our collection is handcrafted in 925 sterling silver and thoughtfully selected to celebrate the beauty and individuality of natural gemstones.
Whether you're searching for a meaningful gemstone ring, a classic sterling silver band or one of our popular spinner rings, explore our collections below.
Looking for the perfect gemstone? Visit our Gemstone Library to discover gemstone meanings, symbolism, birthstones, anniversary gemstones and traditional healing associations.
Or browse our Gemstone Index A–Z to explore every gemstone guide in one convenient place.
✔ Handcrafted 925 sterling silver jewellery
✔ Wide range of UK and US ring sizes
✔ Expert sizing advice before you order
✔ Beautiful natural gemstones
✔ Independent UK jewellery business, established in 2006
✔ Friendly customer service whenever you need help
A ring should slide comfortably over your knuckle with gentle resistance. It should feel secure enough not to fall off, but still be easy to remove without causing discomfort.
If your measurement falls between two sizes, we generally recommend choosing the larger size for a more comfortable fit.
For wider band rings, such as spinner rings, a larger size is often the better option.
Yes. Fingers naturally expand and contract depending on temperature, activity and the time of day.
For the most accurate measurement, measure your finger in the evening when it is at its largest.
Wide band rings, including many spinner rings, tend to fit more snugly than narrow bands.
Please refer to the individual product description for specific sizing advice, or contact us if you're unsure before placing your order.
Some sterling silver rings can be resized by a professional jeweller, while others cannot.
Factors such as the gemstone setting, ring design and band style all influence whether resizing is possible.
We understand that choosing the correct ring size can sometimes be difficult.
Please refer to our Returns & Exchanges Policy or contact us if you need advice regarding your order.
While this method can provide a rough estimate, it is generally less accurate than using a reusable ring sizer or measuring an existing ring.
For the best results, we recommend using one of the methods described in this guide.
Yes. Many people find their fingers are slightly larger during warmer weather and slightly smaller during colder months.
If your measurements are close to the next size, this is worth considering before placing your order.
Always measure the exact finger on which you intend to wear your new ring.
Remember that the fingers on your dominant hand are often slightly larger than those on your non-dominant hand.
Yes. Ring sizes differ between the UK, US, Europe and other countries, which is why we've included an international conversion chart. If you're ordering from outside the UK and need help converting your size, please get in touch before placing your order.
If you have any questions about ring sizing, gemstone rings or choosing the perfect gift, please don't hesitate to get in touch. We're always happy to help and will do our very best to ensure you choose the correct size before placing your order.
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