How To Measure Ring Size Without Your Partner Knowing

Venini Diamonds jewelry expert Jessica is frequently asked by our customers about how to measure ring size without their partner knowing. Here we’ve shared some of Jessica’s best tips and tricks!

Request A Free Ring Sizer Tape Measure

We are happy to send you a complimentary plastic ring sizer so that you can easily measure your ring size at home. A plastic ring sizer shipped to the US and Canada will arrive within five to seven business days and delivery time to Australia may take longer.

1. Be Subtle

If you are absolutely set on a surprise proposal but you still want to find out their ring size directly from the source, ask your significant other in a very subtle, smooth way. If you’re proposing to your girlfriend, you can pretend, for example, that you are going to buy a ring for mom/sister/aunt/niece or even yourself. Make sure that this pretend recipient is someone whose hands are similar in size to your partner. Casually ask what her ring size is for reference. If you really want to beef up the ruse, purchase an inexpensive ring and show it to them. Have them try it on and everything to see if it is a comfort fit and the correct size. Maybe afterward you can actually give that ring to your mom/sister/aunt/niece to appease your guilty conscience!

2. Ask Their Friends

A great way to find out your partner’s ring size is to ask one of their friends. Friends occasionally have this insight! And, if the friend doesn’t know right away, he or she can be the one to ask (nonchalantly). Even better, ask the friend to take your partner engagement ring shopping “for fun.” Have them get professionally sized so that you know if your partner fits standard ring sizes or is more fit for a half size. It’s best to choose a friend who might have once had acting aspirations!

3. Borrow One Of Their Rings

Another method is to snag one of their old rings for a day. You need to be careful with this method because it might backfire on you! Make sure that you grab a ring that your partner wears on a similarly sized finger, the ring finger of their right hand being the optimal choice. Even if you bring in a thumb ring we can usually come up with a close approximation of what size their ring finger will be. If you choose this option, make sure that you choose a ring that isn’t overly important to them and wouldn’t cause any emotional distress if they notice it missing!

4. Leave A Trace

If you are terrified of losing one of their rings try this method instead. Take one of their rings and place it on a piece of paper. Draw a circle on the inside and outside of the ring. Do this several times to make sure that your ring traces look consistent and can indicate the proper ring size. We can usually figure out the inner diameter of their ring from your sketch!

5. Enlist A Friend

If one of your partner’s friends is engaged, ask the friend to let your partner try on the ring. This will put you in a ballpark size range to start out with. You can also use this as an opportunity to ask what they thought of their friend’s engagement ring (in private) and try to do a little sleuthing as to what style of ring your partner would like for themselves.

6. Compare Fingers

This method is a little more difficult, but if you are desperate, go ahead and try it out! When you are holding their hand, see if one of their fingers is similar in size to a finger of yours. For example, their ring finger might be as big as your pinky. This method isn’t amazingly accurate, but the more information we have on their ring size the closer we can get!

7. Ask Your Partner!

There are some people in this world who like to do things the hard way, and then there are those who are very straightforward. If you and your partner have been discussing marriage for quite some time, ask them outright what their ring size is! Don’t worry though— you can still have the element of surprise. After all, they don’t know when you’re going to ask, or how! If your partner doesn’t know their ring size, they can find it using our printable ring sizing guide.

Keep In Mind:

The two most accurate ways to confirm ring size are to come in and have your partner sized by us in person or have them visit a local jeweler. Using one or several of the methods above will result in a very good approximation, but there is always the risk that it will be slightly off.

Please note that for custom designed rings, we highly recommend visiting a local jeweler or coming in and having their finger sized with us, as custom pieces are final sale and may not be able to be resized in the future. Err on a larger size so that it will be guaranteed to slip over the ring finger when you propose.

Interesting Ring Size Facts:

  • Our dominant hands tend to be slightly bigger (so make sure you are measuring for their left!)
  • The most common women’s ring size is 6 to 6.5.
  • The most common men’s ring size is 10.
  • Wider rings have a tighter fit than thinner bands, so if you borrow a ring for us to measure, try to make sure that it is the same width as the ring you plan on purchasing.
  • Venini Diamonds is happy to ship you a free ring sizer, so that you can measure your ring size in the comfort of your home!

What If I Just Can’t Figure Out The Size?

If you simply can’t figure out the size or you don’t want to risk it, consider choosing a temporary setting to propose with. Our temporary setting is our 18K White Gold 2mm Comfort Fit Ring. You have sixty days to propose, have your partner properly sized, and send the ring back. Once you have their perfect size, we can set your diamond in your ideal setting.  This way they get to see the diamond you chose, but there isn’t the risk of having to resize the actual setting. Please contact us about this option, so we can explain the exact process to you! This is also a great option for those who don’t know whether to purchase an engagement ring before or after proposing. You can also chat with a Venini Diamonds representative live using the chat feature on the website for more assistance.

Good luck!