Ring sizing (EU)
Find Your Ring Size
Measure Your Finger
size guide
Use a flexible measuring tape or length of string.
Wrap it around the finger you'll wear your ring on, if you're creating a ring stack, consider where on your finger the ring will sit. If using string, mark the point on the string where the ends meet with a pen.
Lay the string on a flat surface and use a ruler to measure the length (in inches or millimeters) up to the mark. Compare your measurement to the Tiffany size chart to determine your ring size. If you are between sizes, opt for the larger size.
Measure an Existing Ring
size guide
Choose a ring that already fits your finger well.
Measure the interior diameter of the ring in millimeters (mm).
Use the measurement chart to match the size of your ring to the closest Tiffany size in mm. The interior of the ring should align with the outer edge of the circle.