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Katherina | Vintage Opal and Sapphire
Select your size
This overview provides practical tips, various measurement methods, and an overview of international sizes.
|
|
|
|
| 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.
Pay in 30 days
Free shipping the next business day*
, ISADEEJANSEN The Katherina ring sparkles with an enchanting opal at its center—a stone that seems to catch the light differently with every movement. The classic halo setting with sapphires gives the ring its romantic, almost regal appearance.
A timeless vintage piece of jewelry in which color, character, and elegance come together as if the ring were carrying a love story from another era.
Material:
- 9K
- Opal and Sapphire
🇳🇱 Netherlands Free
🇧🇪 Belgium Free
Carrier: PostNL (with signature)
Returns
Easy returns within 14 days via ourreturns portal.
Visit our showroom in Amstelveen. Tip: Be sure to check our current inventory on the day of your visit.
Make an appointment
Choosing options
Select your size
This overview provides practical tips, various measurement methods, and an overview of international sizes.
|
|
|
|
| 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.