How to Secretly Determine Your Partner’s Engagement Ring Size

Finding your partner’s engagement ring size can be a bit tricky, but it’s certainly doable with a little creativity and tact. The key is to be discreet so you don't give away your surprise.

Asking directly about your partner’s ring size or doing anything too obvious might spoil the excitement of your proposal.

To help you keep the mystery alive, we’ve compiled some creative ways to ensure everything is perfect for your big moment. Speaking of popping the question, here are some other things you should consider other than the engagement ring size:

Here’s What You Need to Know Before Proposing

Now that you have a handle on the essentials of proposing let's move on to another critical aspect: choosing the right ring size without them suspecting a thing.

7 Useful Tips You Can Use to Find Their Ring Size

Planning a surprise proposal? First things first, congratulations on taking this significant step in your relationship! Ensuring you have the right ring size is crucial to making your big day perfect. After all, you don't want anything to ruin the moment you've been dreaming of and planning for days on end.

But while the size of the ring is essential, it's not the only factor to consider. The style of the ring is just as important. Here are some popular engagement ring styles to think about:

• Halo rings
• Pear-shaped rings
• Oval cut rings
• Solitaire rings
• Round cut rings

And there are many other engagement ring options to choose from - so be sure to select a type your partner fancies. Anyway, we’re taking it a step at a time since we know how overwhelming it can all be. Here are some tips on how to determine your partner’s ring size without raising any suspicions.

1. Borrow a Ring

If your partner already wears rings, you’re in luck. Casually borrow one they wear on their ring finger (preferably the left hand) and take it to a jeweller for measurement. Just make sure to return it before they notice it’s gone!

However, if your partner doesn’t wear rings, don’t fret—we’ve got other tactics you can utilize in the subsequent points.

2. Trace It Out

If you’re worried about taking the ring out of the house, you can place it on a piece of paper and trace the inner and outer circles. A jeweller can use this to estimate the size.

3. Ask a Friend

If your soon-to-be fiancé(e) has a close friend who knows their ring size, reach out to them for help. They might also be able to subtly find out the size without raising suspicion.

Don’t forget about the family members too! 

Pro tip: Find those who can be trusted to keep your secret safe.

4. Casual Conversations

Try to bring up jewelry in a casual conversation. For instance, you might discuss a celebrity engagement or a friend’s new ring and see if your partner mentions their ring size or type.

However, this approach can be quite tricky, especially if you’re already on their radar for other suspicious activities. It’s best to use this tactic early in the planning process or as a last resort. But don’t worry; there are still more strategies to explore! 

5. String or Paper Trick

If your partner is a deep sleeper and you’re feeling bold, you could gently wrap a piece of string or paper around their finger and mark where it overlaps. Measure this length with a ruler and use a ring size chart to find the corresponding size.

This method requires a steady hand and a light touch, but it may not be the best way to get your partner’s ring size secretly, as it leaves lots of room for errors. Your string can stretch, and paper can crumple, leading to measurement errors. Also, keep in mind that one’s finger size changes based on temperature, time of day, and other factors.

6. Shopping Fun

Additionally, you can plan a fun outing where you casually wander into a jewelry store. Then, while at it, encourage your partner to try on rings “just for fun” and pay close attention to the sizes that seem to fit the best. 

Be aware, though, that this could raise some questions, so it’s best to consider this tactic only as a last resort.

7. Ask a Jeweller

Some jewellers have experience in guessing ring sizes based on photographs. Show them a photo of your partner's hand with a ring on it to get their professional opinion.

Please be advised that this is a high-risk tactic, and the success of the results may vary.

So, if you’re not willing to take the risk, you can visit a jeweller to get your partner’s engagement ring size professionally measured (if she’s already involved in planning the proposal). This is the most accurate method and ensures a perfect fit.

Things to Avoid When Secretly Measuring Ring Size

While being sneaky can be fun, here are a few things to steer clear of to keep your secret safe:

• Avoid Direct Questions: Asking your significant other about their ring size outright is a dead giveaway. Keep your intentions under wraps by being subtle.
• Don’t Rely on Guesswork: Eyeballing your partner’s ring size might seem easy, but it’s risky. A ring that’s too tight or too loose can spoil the moment. Use one of the creative methods mentioned earlier instead.
• Avoid Public Discussions: Don’t bring up ring sizes or anything related to proposals in public or during group conversations. Someone might let it slip.
• Avoid Overly Complex Methods: Simpler methods, if done correctly, are often more reliable than complicated techniques that can introduce more potential for error.

Find the Perfect Ring Size with Expert Guidance

Trust our team at Global Diamond Montreal to help you find the correct engagement ring size for your surprise proposal. So, don’t hesitate to reach out. And if you can’t find a size, we make custom engagement rings too! Schedule a free consultation here.

Best of luck!

Keep in mind that the heartfelt sentiment behind your proposal is what truly matters, so try to stay relaxed. With thoughtful planning, you’ll be on track to executing the perfect surprise proposal. 

Still, figuring out your proposal plans? Check out our proposal guides: Here’s What You Need to Know Before Proposing, What You Need To Know Before Buying Lab-Grown Diamonds