11 Easy Ways to Get Your Girlfriend's Ring Size Without Her Knowing

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You're probably overjoyed to be planning a dazzling surprise proposal for your amazing girlfriend—but to piece together that perfect moment, won't you need her ring size? Luckily, there are actually so many ways to secretly snag her size without tipping her off to your plans. Jewelry experts and wedding enthusiasts have come up with some incredible (and subtle!) methods, so you can focus on what's most important: proposing to the girl you love. For all of the best strategies on getting your girlfriend's ring size without her knowing, read on.

1

Take a ring of hers to the jeweler.

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  1. This is one of the most effective ways to sneakily check her size, because you’re going off of a ring that she already wears and you’re getting the help of a professional. [1] That being said, you should be careful that the ring you choose definitely fits her well and is worn on her ring finger. Plus, you’ll need to choose a ring that she won’t notice is missing. [2]
    • A properly fitted ring will slide over the knuckle with only a bit of struggle, then sit snugly at the base of the finger without causing pain or tingling. [3]
    • When trying to find a ring she won't miss, you need to avoid accidentally picking a ring that she doesn't wear because it doesn't fit.
    • Ask her how this ring feels. Or, admire it up close. While you do this, subtly check that it twists but isn’t loose enough to slide off her knuckle.
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2

Outline a ring she wears on her ring finger and take that to the jeweler.

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  1. As long as you have a moment alone with a great reference ring, you can outline the inside and outside of the ring to establish its size. To be safe, outline the ring multiple times in different spots on the page. Bring your findings into a jeweler, and it’s mission accomplished!
3

Compare a ring she wears on her ring finger to a ring size chart.

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  1. You can find printable ring size charts online that allow you to measure from home . This way, you get your girlfriend’s size, and the ring doesn’t even need to leave your house. Simply measure against the chart’s sizes, and you’ll have your answer right there. Just make sure the ring you check fits and is worn on her ring finger. [4]
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4

Try on a ring she wears on her ring finger to gauge her size.

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  1. If you have a moment alone with her rings, try on one that you know she wears on her ring finger. You may find that it fits perfectly (jackpot!). Or, you may need to get creative. Slide the ring as far down on your finger as possible, then mark the ring's final location on your finger with a marker. Show the jeweler your marking and her ring, and they may be able to get an accurate sizing.
    • If you can't get ahold of one of her rings, simply compare your finger sizes. This won't be an exact science, but it can get you in the right range.
    • When your hands are next to each other, take a moment to consider your ring fingers' size difference. Is your finger's circumference much larger than hers?
    • If that's the case, recall your ring size. Your girlfriend's ring size will be smaller than yours. Your jeweler can help you figure out an approximate size.
5

Ask her friends and family for her size.

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  1. The downside here is that you may need to let your girlfriend’s mom, sister, or pal in on your plans. The upside is that you avoid big stunts and she’s less likely to find out. Even if the person you choose doesn’t know, they may know someone who does.
    • “Hey! So I don’t want you to freak out, but I need Thelma's ring size. It’s really important that you don’t tell anyone just yet. Do you know it? Or if you don’t, do you know someone who would?”
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6

Have a friend find out for you.

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  1. Pick one of your girlfriend’s pals that you know you can trust. Let her in on your plans and emphasize the importance of keeping everything under wraps. Ask her if she has ideas to get your girlfriend’s ring size or suggest a few you think would work well yourself: [5]
    • “Take her shopping and try on rings together. Admire a couple she wears up close and subtly check how they fit. Make sure you remember the size.”
    • “Ask to try on her ring. Casually ask her size to compare it to yours. ‘What size are you? If you're an 8 and I'm a 6, it makes sense that it's loose.’”
7

Ask an engaged friend to help.

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  1. Get the help of an engaged or married friend and invite them over for dinner and drinks. As the good times roll, your pal can ask your girlfriend to try on her dazzling engagement ring just for fun. The two of you can gauge whether it's a close fit to get in a ballpark range. You may even luck out with a ring that fits perfectly. [6]
    • Unless you get a perfect fit, this method may not get you the exact sizing.
    • But being in close range is valuable. Afterward, you can always narrow things down using another strategy.
    • For example, you could ask a friend of your girlfriend's to try on rings with her. Combined with the info you already have, this can help you zero in on her exact size.
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8

Ask your girlfriend to help you size a ring for someone else.

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  1. There are so many potential reasons that you might be buying a ring for someone else. Maybe your little sister is graduating from college or your mom’s birthday is coming up. You could even claim that a friend she doesn’t know is proposing to their girlfriend! [7]
    • “Hey! Could I borrow your finger for a second? I’m trying to buy a ring for my sister, but I have no idea what size to get. You guys have got to be similar.”
    • “You remember Sarah? She’s proposing to her girlfriend. But she needs to subtly get her ring size. I told her I’d grab yours for reference.”
9

Gift her a cheap ring that you “found.”

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  1. There are tons of different reasons you may have “found” or “won” a cheap ring that you want her to wear. You could’ve earned it at an arcade, found it on the ground, or bought it at the gas station because you thought she’d like it. Make sure that you know the ring's size before you give it to your girlfriend and observe carefully when she tries it on. Determine whether the fit is loose, tight, or just right. [8]
    • Make sure your ring doesn't have an adjustable band. If your ring has one, it will make it impossible to gauge her size from it.
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10

Find a way to ask for her size in a joking way.

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  1. When you ask a question for a funny reason or in a joking way, it helps to kick suspicion. Ask yourself whether or not this strategy is likely to work in your relationship. Is your girlfriend already suspicious about the proposal? Is silly banter common in your relationship? Are you a good liar? If you're confident you can pull it off, look for opportunities to joke about your girlfriend's ring size or plan a joke ahead of time. [9]
    • “Wow, look at this finger. Who’d have thought that was a size 105. Oh, those don’t exist? Prove it. What size is your finger then?”
    • “I heard your ring size is actually a tenth of your foot’s length, every time. I’m serious! You don’t believe me? Fine, let’s test it on you.”
    • “I read that people who love coffee have smaller fingers. The only way to know for sure is to test it out, and you’re the perfect candidate.”
11

Know that resizing is an option.

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  1. The rule of thumb for resizing is usually about 2 sizes, which is about 4–6 millimetres (0.40–0.60 cm). If you're not positive that you have the right size, don't stress. Your jeweler can let you know if your ring choice will be easy to resize. [10] For most standard rings, resizing is a simple, doable process. Just make sure you're aware of the ring types that can't be resized: [11]
    • Quartz, wood, tungsten, rose gold, and titanium rings
    • Rings with gemstones all around the band
    • Rings with tension settings
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      References

      1. ↑ Nicole Wegman. Jewelry Professional & Founder of Ring Concierge. Expert Interview. 23 April 2020.
      2. ↑ https://tiary.com/downloads/tiary-size-guide-rings.pdf
      3. ↑ Nicole Wegman. Jewelry Professional & Founder of Ring Concierge. Expert Interview. 23 April 2020.
      4. ↑ https://www.brides.com/secretly-measure-engagement-ring-size-7642917
      5. ↑ https://youtu.be/2-b12BBrnD0?t=301
      6. ↑ https://youtu.be/2-b12BBrnD0?t=368
      7. ↑ https://tiary.com/downloads/tiary-size-guide-rings.pdf
      8. ↑ https://youtu.be/2-b12BBrnD0?t=559
      9. ↑ https://youtu.be/2-b12BBrnD0?t=523
      1. ↑ Nicole Wegman. Jewelry Professional & Founder of Ring Concierge. Expert Interview. 23 April 2020.
      2. ↑ https://www.whowhatwear.com/engagement-ring-resizing-tips

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