How to Find Out Your Partner’s Ring Size Without Asking

Planning a proposal can be quite daunting. There’re 101 things to think about but one of the most important things is to find out your partner’s ring size without them knowing what you’re up to. Whether you’re wondering how to measure ring size at home, how to secretly find your girlfriend’s ring size, or what happens if the engagement ring is too big or too small, there are several simple ways to get a surprisingly accurate fit before the proposal.

1. Ask their friends – enlisting the help of one of her friends or family members is a great way to get their ring size info. Maybe their friends will already know but if they don’t, have them go out to brunch and slip the question there or disguise engagement ring shopping for them as browsing for a ring for the friend. It’s better to ask a friend who has good acting skills!

(Friends discussing engagement rings over brunch to help secretly find a partner’s ring size)

2. Take one of their rings – If you already have access to one of their rings, a local jeweller can accurately measure the ring diameter and circumference to determine the correct UK ring size. It is important to note that you need to make sure which finger they wear this ring and that they don't wear it often or they'll notice when it’s gone!

3. Trace one – if you can’t bring one of their rings to a local jeweller, you can still use one of their rings by tracing the inside and outside of it. Just make sure it’s as accurate as possible.

Tracing a ring on paper to measure ring size at home using a UK ring size guide

4. High five! (Compare hands) – not as subtle or accurate as the other methods, but this method can work if you implement it right. Ask your partner to compare hands or take more notice when you’re next holding hands. It’s normally the case that their ring finger is the same size as your pinky or little finger.

Don’t worry if you don’t get the perfect ring size for the proposal, it can be resized and altered to fit their finger perfectly after!

Couple holding hands while planning an engagement and choosing the correct ring size

Oh and there’s one last suggestion (that we think is the best):

5. Neil Rayment’s Proposal Diamond

Neil Rayment’s Proposal Diamond offers a modern and meaningful alternative to the traditional engagement ring proposal.

Instead of choosing a finished ring alone, you can propose with a beautiful loose diamond — available as either a natural or lab-grown diamond — before creating the final bespoke engagement ring together as a newly engaged couple.

After the proposal, you’ll both be invited to visit Neil Rayment Jewellers & Goldsmiths in Cardiff to begin designing a ring that perfectly reflects your story, style, and relationship.

Explore our journals on the difference between lab-grown and natural diamonds to help decide which option is right for you.

Loose proposal diamonds at Neil Rayment Jewellers in Cardiff for bespoke engagement ring

Don’t panic if the proposal ring isn’t a perfect fit immediately. Most engagement rings can be resized after the proposal, particularly gold and platinum designs. In many cases, resizing only takes a short amount of time and allows you to achieve the perfect comfortable fit.

We include one free ring resize with all engagement ring purchases.

How to Find Out Your Partner’s Ring Size Without Asking

5. Neil Rayment’s Proposal Diamond

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