Finding the right ring size is one of the small details that makes a ring feel effortless. Whether you are choosing an everyday ring, a wedding band, or a surprise engagement ring, the goal is the same: a fit that feels comfortable, secure, and easy to wear.
How to measure your ring size at home
The simplest way to measure your ring size is to use a thin strip of paper or string. Wrap it around the base of the finger, mark where the ends meet, then measure the length in millimeters. Compare that measurement with a US/Canada ring size chart.
For best results, measure two or three times. Fingers can change slightly depending on temperature, time of day, hydration, and activity.
When is the best time to measure?
Measure near the end of the day, when your fingers are usually at their largest. Avoid measuring when your hands are very cold, because fingers can be slightly smaller. If your knuckle is wider than the base of your finger, choose a size that can pass the knuckle comfortably without feeling loose once the ring is in place.
What if you are between two sizes?
If you are between sizes, we usually recommend choosing the half size up. This is especially helpful for wider bands or fingers that tend to swell with heat. A ring should slide over the knuckle without force, then sit securely without spinning too much.
Choosing a ring size for a surprise proposal
If you are planning a surprise, borrow a ring that is worn on the correct finger and measure its inner diameter. If that is not possible, our team can help you choose a safe starting size based on average sizing and the ring style. Proud Diamond also offers guidance if an adjustment is needed after the proposal.
Use a ring sizer for the most accurate fit
A ring sizer is the easiest way to confirm your size before ordering. You can use our complete ring size guide to compare measurements and request a ring sizer.
Ready to choose your ring?
Once you know your size, explore our lab diamond rings or our engagement rings. If you are unsure, our team can help you choose the right size before you order.
