Measure exactly the finger you want to wear the ring on, as the finger circumference of the right and left hands can differ significantly.
Since ring sizes change over time, please check whether the “old” size is still correct.
Your ring size changes throughout the day. Fingers are often thicker in the evening than in the morning.
The ring size also changes over the course of life, e.g. during/after pregnancy, diet or illness. Therefore, if possible, do not rely on a size that was determined a long time ago.
The season also has an influence on the circumference of the fingers. Fingers are usually thicker in summer than in winter – the higher the temperature, the thicker the fingers.
For optimal wearing comfort, you should choose a larger size for wider rings than for narrow rings.