Measure your finger at the end of the day. Do not measure your finger when it is hot or cold.
Remember that the two hands differ slightly in size; a ring worn on a finger of the left hand will not be a perfect fit for the same finger on the right hand.
Make sure that the chosen size leaves enough room for the ring to pass easily along the entire length of the finger.
Ways to measure your finger:
- Use a tape measure. Wrap the tape measure around your finger, note the measurement (in millimeters) and consult the Cartier Ring Size Chart to determine your ring size.
- Download and print the Cartier Finger Sizer. Before printing, make sure the "Page scaling" option is set to "None" in the dialog box of your printer options. The Cartier Finger Sizer must be printed on full-size standard letter paper.
Follow the instructions and consult the Cartier Ring Size Chart to determine your ring size.
If you are hesitating between two sizes, choose the larger size. Please note that the style of the ring may also affect the choice of size: a large ring is made to be worn more loosely than a smaller model.