What is the most common engagement ring size for women?

The most common engagement ring size for women in the UK is size M, with most women falling between sizes L and N. However, finger size can vary significantly from person to person, so these sizes should only be used as a general guide.

If you're planning a surprise proposal and don't know your partner's ring size, size M is often considered the safest starting point. You could also borrow a ring they already wear on the correct finger and compare it to a ring size chart for a more accurate estimate.

Remember, it's usually easier to adjust a ring that's slightly too large than one that's too small. If you're unsure, using a ring sizer or seeking professional advice can help ensure the best possible fit.