Ring Size Chart
Use the helpful conversion chart below to find the right size for your chosen rings. On our website we use US & Canada sizes.
| GEMX Size | USA & Canada | Europe | UK & Australia | Circumference (mm) |
Diameter (mm) |
|---|---|---|---|---|---|
| 4 | 4 | 46.5 | H | 46.8 | 14.9 |
| 4.5 | 4.5 | 48 | I½ | 48 | 15.3 |
| 5 | 5 | 49 | J½ | 49.3 | 15.7 |
| 5.5 | 5.5 | 50.3 | K½ | 50.6 | 16.1 |
| 6 | 6 | 51.5 | L½ | 51.9 | 16.5 |
| 6.5 | 6.5 | 52.5 | M½ | 53.1 | 16.9 |
| 7 | 7 | 54 | N½ | 54.4 | 17.3 |
| 7.5 | 7.5 | 55.3 | O½ | 55.7 | 17.7 |
| 8 | 8 | 56.6 | P½ | 57 | 18.1 |
| 8.5 | 8.5 | 58 | Q½ | 58.3 | 18.5 |
| 9 | 9 | 59.5 | R½ | 59.5 | 18.9 |
| 9.5 | 9.5 | 60.3 | S½ | 60.8 | 19.3 |
| 10 | 10 | 61.6 | T½ | 62.1 | 19.8 |
| 10.5 | 10.5 | 62.8 | U½ | 63.4 | 20.2 |
| 11 | 11 | 64 | V½ | 64.6 | 20.6 |
Find the Perfect Fit
Choose your corresponding size by comparing your wrist measurements to the chart below or by following the directions in our printable guide.
| Bracelet Size | Wrist Size |
|---|---|
| Small | 6.5–7 in |
| Medium | 7–7.5 in |
| Large | 7.5–8 in |
| X-Large | 8–8.5 in |
How to measure at home:
Find Your Size in 3 Steps
- Gather Your Tool: Use a tape measure, string, or strip of paper if our printable guide isn’t available.
- Measure Your Wrist: Wrap the tool snugly below your wrist bone (numbers facing out). Adjust for comfort—aim for a natural fit.
- Match & Choose: Note your measurement, compare it to our size chart, and select your bracelet size. Between sizes? Opt for the larger one.

JAN-Garnet
FEB-Amethyst
MAR-Aquamarine
APR-Diamond
MAY-Emerald
JUN-Pearl
JUL-Ruby
AUG-Peridot
SEP-Sapphire
OCT-Opal
NOV-Topaz
DEC-Tanzanite
Tourmaline
Malachite
Spinel
Citrine
Diopside
Green Agate
Jades
Oval Cut
Emerald Cut
Pear Cut
Round Cut
Heart Cut
Square Cut
Cabochon Cut
Sugarloaf Cut
Plate Cut
Rose Cut
Fancy Cut
Rough Cut