Size charts
How do I measure my ring size myself?
Method 1: Inner diameter
Take a ring of yours that fits well and place it on a ruler. Measure the inside of the ring. The number of millimeters is your iXXXi (base) ring size. If you don't get an exact size, always round the number up.

Method 2: Circumference
- Cut a strip of paper the width of the desired (base) ring.
- Wrap the strip around the widest part of your finger, otherwise the ring will not fit over your knuckles.
- Use a pen to mark the point where there is an overlap on the strip.
- Measure the length from the starting point to the point marked with the pen on the strip with a ruler.
- Always round up the size for a base ring.
iXXXi Jewelry Base and Fill Rings
| Base ring size |
Inner diameter base ring |
Circumference base ring mm | Fill ring size |
Inner diameter fill ring |
| 15 mm | 15 mm | 47 | 15 mm | 17 mm |
| 15,5 mm | 15,5 mm | 48 | 16 mm | 18 mm |
| 16 mm | 16 mm | 50 | 17 mm | 19 mm |
| 16,5 mm | 16,5 mm | 52 | 17 mm | 19 mm |
| 17 mm | 17 mm | 53 | 17 mm | 19 mm |
| 17,5 mm | 17,5 mm | 55 | 18 mm | 20 mm |
| 18 mm | 18 mm | 57 | 18 mm | 20 mm |
| 18,5 mm | 18,5 mm | 58 | 19 mm | 21 mm |
| 19 mm | 19 mm | 60 | 19 mm | 21 mm |
| 19,5 mm | 19,5 mm | 61 | 20 mm | 22 mm |
| 20 mm | 20 mm | 63 | 20 mm | 22 mm |
| 20,5 mm | 20,5 mm | 65 | 21 mm | 23 mm |
| 21 mm | 21 mm | 66 | 21 mm | 23 mm |
iXXXi Fame rings
❌ Not compatible with base ring
| iXXXi Fame ring | EU | US | UK | German | Inner diameter | Circumference mm |
| 16 | 50 | 5 1/2 | K 1/4 | 16 | 16 mm | 50 |
| 17 | 53 | 6 1/2 | M 1/2 | 17 | 17 mm | 53 |
| 18 | 57 | 8 | P 1/2 | 18 | 18 mm | 57 |
| 19 | 60 | 9 | R 3/4 | 19 | 19 mm | 60 |
How do I measure my bracelet size?
Wrap a tape measure around your wrist, making sure it's not too tight. The number of centimeters can be read directly. If you don't have a tape measure, you can use a string. Wrap the string around your wrist and make a mark where the string crosses. Then measure the length of the string and add about 2 cm to it for your bracelet size.
| Bracelet size | |
| Tight bracelet | wrist circumference + 1.5 cm |
| Normal bracelet | wrist circumference + 2 cm |