Ask her her ring size. Interesting Ring Size Facts: Our dominant hands tend to be slightly bigger so make sure you are measuring for her left!
This will put you in a ballpark size range to start out with. A well-fitting ring will be loose enough for comfort, yet snug enough not to slip — particularly over the knuckle.
You have two options open to you: use our free plastic ring sizers which you can get here or; use a strip of paper, place around the finger, and stick with tape at the right size remembering the balance of comfort and safety.
Do Some Artwork Jewelers are pretty good at estimating ring sizes based on traces. Unless said friend is also likely getting engaged soon, it would be random for a single person to suggest to your partner that they make a specific plan to try rings on.
That's why we came up with our own helpful ring size guide that provides you with a couple do it yourself ways to find a ring size.
Next, swipe the ring and bring it into a jewelry store for measuring. While your partner is in Sleeping Beauty mode, take a simple string, fishing line, or piece of paper and wrap it around their finger on their left hand.
You can then mark the paper and measure accordingly. Do this several times, and bring it into the jeweler for sizing. Just remember, a ring is an extension of ones personality, make it meaningful and you're already on the right track.
You can also pt the right on your own finger and draw a line right under where it sits.
Make sure that you grab a ring that she wears on a similarly sized finger, the ring finger of her right hand being the optimal choice unless, of course, she wears a ring on her left ring finger, which is less likely.