Choosing the perfect engagement ring is exciting – but one of the trickiest parts is getting the size right without giving away the surprise. A proposal is a once-in-a-lifetime moment, and you’ll want everything to be just right, including the way the ring slips onto their finger.

Here are some clever ways to find the right ring size without spoiling the magic.

1) Borrow a Ring They Already Wear

If your partner already wears a ring on their ring finger (or even one close in size), borrow it temporarily. A jeweller can measure it, or you can use a printable ring sizing guide at home. Just make sure it’s a ring they won’t miss for a day or two.

Tip: Check which hand they wear it on – fingers on the dominant hand are often slightly larger.

2) Ask a Trusted Friend or Family Member

If you’re comfortable sharing your plans, a close friend or sibling might already know your partner’s ring size. Even if they don’t, they can help subtly find out without raising suspicion.

3) Compare Against Your Own Finger

Slide one of their rings onto your finger and mark how far down it goes. A jeweller can usually estimate the size from that reference.

4) Use a Ring Sizer at Home

Printable ring sizers or inexpensive plastic measuring tools work well if you have access to one of their rings. Place the ring on the guide and match it to the closest size.

5) Pay Attention to Subtle Clues

• Comments about a friend’s engagement ring feeling tight or loose.
• Mentions of fingers swelling in warmer weather or after exercise.
• Notes about current rings being snug or needing to be moved to another finger.

6) Don’t Stress – Resizing Is an Option

At Ahimsa London, we offer one free resize within the first year, because finger sizes can change with seasons and lifestyle. You don’t need to get it 100% perfect the first time.

Final Thoughts

Finding the right engagement ring size without spoiling the surprise may take a little detective work, but it’s worth the effort. The most important part is the love and thought behind the moment – the size can be adjusted afterwards.

Our team at Ahimsa London is here to guide you from design to resizing, so you can focus on creating a moment to remember forever.