For the most accurate ring size, we recommend measuring your finger rather than another ring.
Take a piece of string or ribbon and wrap it around the base of your finger. To ensure a comfortable fit, also measure around your knuckle. Mark where the ends meet with a pen. Measure the string in millimeters (or inches) using a ruler. Refer to the size chart below. Find your measurement in the first column ("finger circumference in MM") to determine the correct Cartier size for your selection.
- Measure your finger at the end of the day.
- Avoid measuring your finger when it's too hot or cold.
- Keep in mind that finger sizes may vary slightly between hands.
- Choose a size that allows the ring to slide comfortably along the entire length of your finger.
