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Ruby | Diamond Ring

Aanbiedingsprijs €399 Normale prijs €479
Hypoallergenic - gentle on the skin
Finished with high-quality materials
Nickel-free and suitable for everyday wear

Select your size

Size Guide

This overview provides practical tips, various measurement methods, and an overview of international sizes.


Finger circumference
in mm


Ring diameter
in mm


Ring size

48 15.25 48
50 16.00 50
52 16.50 52
54 17.25 54
56 17.75 56
58 18.50 58
60 19.25 60
62 20.00 62


Option 1. With a flexible measuring tape or string.

  • Use a flexible measuring tape or a thin piece of string.
  • Wrap it around the finger where you want to wear the ring.
  • Mark the point where the ends overlap.
  • Measure the marked section with a ruler.
  • Are you unsure between two sizes? Choose the larger one.

Tip: measure your finger at the end of the day and at room temperature.

Option 2. Measure an existing ring with a ruler.

  • Place the ring flat on a hard surface.
  • Measure the inner diameter with a ruler.
  • Use our table to convert this.

Option 3. International ring sizes.

Switzerland: 1–30 (perimeter)
France/Germany: 41–76
United Kingdom: A–Z
USA & Canada: 1–16
Japan: 1–27

Average ring size for women
Usually between size 52 and 54.

Select your size:
Made from sustainable 10K
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Roeby | Moonstone & Diamond Ring - Menina Amsterdam
Ruby | Diamond Ring Aanbiedingsprijs €399 Normale prijs €479