Buying an engagement ring is one of the most exciting moments in life. You’re planning a surprise proposal, carefully selecting the perfect ring, imagining the look on your partner's face – but there’s just one catch: you don’t know their ring size.

Don’t worry! You’re not alone in this dilemma, and the good news is there are plenty of creative ways to get around it without spoiling the surprise. Let’s explore the best strategies for buying an engagement ring when you have no clue about the size.

Why Ring Size Is Important

When it comes to engagement rings, size does matter.

A ring that’s too tight can be uncomfortable, while one that’s too loose runs the risk of slipping off and getting lost.

Getting the right size ensures that your partner will be able to wear the ring comfortably from the moment you pop the question.

However, if you don’t know their exact size, don’t stress too much.

Many jewellers offer resizing services, and with a bit of planning, you can get pretty close to the perfect fit.

If you’re unsure of where to start when it comes to engagement rings, you can explore our wholesale diamond collection for a variety of options.

Subtle Ways to Discover the Ring Size

If you’re hoping to keep the proposal a secret, there are a few stealthy methods to figure out your partner’s ring size without them realising.

Borrow a Ring

One of the easiest ways is to ‘borrow’ a ring your partner already wears on their ring finger.

Take it to a jeweller who can measure it, or use a ring-sizer tool at home.

Just make sure it’s a ring they wear on the correct finger, as different fingers can vary in size.

Ask Friends or Family

Involve someone close to your partner who might know their ring size.

Friends, siblings, or even parents may have this vital information tucked away, or they can casually ask in a way that doesn’t raise suspicion.

Trace a Ring

If you can’t borrow a ring, try tracing the inside of one of their rings on paper or press it into a bar of soap to create an impression.

This can give a jeweller a rough idea of the size.

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Estimating the Ring Size

Sometimes, even after your best detective work, you’re left guessing.

In that case, there are still ways to estimate the size with reasonable accuracy.

Use an Average Size

For many, the average ring size for women is around L-N (UK) or 6-7 (US).

For men, it’s around R-T (UK) or 9-10 (US).

If your partner’s hands seem smaller or larger than average, adjust accordingly.

Measure Their Finger While They Sleep

If you live together, this is a sneaky trick: use a piece of string or a soft measuring tape to measure their finger while they’re asleep.

Make sure to measure the correct finger (the ring finger on the left hand) and note the measurement in millimetres to take to a jeweller.

Compare Fingers

Another way to estimate is by comparing their fingers to your own.

Slip one of their rings onto your finger and mark where it fits – a jeweller can use this to estimate their size.

You can browse different diamond cuts like round, cushion, or pear shapes that might suit your partner’s style while keeping flexibility with resizing.

Opting for Adjustable or Resizable Engagement Rings

If you’re still unsure about the size, choosing an engagement ring that’s easily adjustable or resizable can be a lifesaver.

Adjustable Rings

Some engagement rings are designed to be adjustable, offering flexibility in size without compromising style.

These are a great option if you’re worried about getting the size spot on.

Custom Designs That Are Easy to Resize

Opt for a ring style that can be resized without too much hassle.

For example, simpler bands without intricate detailing or stones along the side are often easier to adjust.

When shopping, ask the jeweller about the ring’s resizing possibilities.

Customisation can also be a great route, and exploring unique lab-grown diamonds could add a personal touch to the design.

Proposing With a Temporary Ring

If the thought of getting the size wrong is stressing you out, there’s always the option of proposing with a temporary or placeholder ring.

Temporary or Placeholder Rings

Proposing with a stand-in ring can take the pressure off, allowing your partner to be part of the final ring selection.

This temporary ring can be a simple band or a fun, symbolic piece that represents your love, with the final engagement ring to be chosen later together.

The Romance of a Placeholder Ring

In fact, proposing with a placeholder ring can add a lovely story to your proposal.

It shows that you care about getting the details right and that you want them to be part of the process.

Plus, shopping for the ring together can be a memorable and bonding experience.

Once you’re ready, you could browse for the final ring, considering options like fancy coloured diamonds or something classic.

How to Handle Resizing After the Proposal

Even if you’ve done everything right, you might still end up needing to resize the ring after the proposal.

It’s not uncommon, and most jewellers offer resizing services.

Resizing Policies

Before buying, check the jeweller’s resizing policy.

Many jewellers will resize the ring for free within a certain period after purchase, or at a reduced cost.

Make sure you know what options are available to you.

How Resizing Works

Resizing involves either adding or removing small amounts of metal from the band to change the size.

Some ring designs are easier to resize than others, so it’s worth asking about the process when you make your purchase.

Resizing Timeframe

Resizing typically takes a week or two, depending on the jeweller.

It’s a good idea to have a backup ring or simply wait for the resized ring to arrive, knowing it will fit perfectly.

Alternative Engagement Ring Ideas

If you’re concerned about sizing, there are some non-traditional options that might appeal to you and your partner.

Non-Traditional Ring Styles

Consider rings with open bands, adjustable wrap-around designs, or tension-set styles that allow for more flexibility in size.

These unique rings can make a statement and take the pressure off getting the exact size right.

Necklaces or Bracelets as Alternatives

Another creative approach is to propose with an engagement necklace or bracelet.

These can symbolise your commitment, and you can choose the final ring together afterward.

Once you're ready to select the perfect ring, check out a range of lab-grown diamond shapes like pear, princess, or oval cuts to make your engagement extra special.

FAQs

What happens if the ring doesn’t fit?

Don’t panic! Most jewellers offer resizing services.

Check their policy before purchasing to ensure it’s affordable or included in the price.

Is it better to buy a larger or smaller ring if I’m unsure?

It’s usually safer to go slightly larger, as making a ring smaller through resizing is easier than enlarging it.

However, this depends on the jeweller’s ability to resize.

How can I surprise my partner without asking for their ring size?

Use sneaky methods like borrowing a ring, asking friends or family for help, or estimating based on averages.

If you’re still unsure, opt for a temporary ring or an adjustable style.