Jewelry Size Guide
Finding the perfect fit is essential for your comfort and the security of your jewelry. Use our comprehensive size guide below to ensure the best fit for your pieces.
Ring Size Guide
| US Size |
UK Size |
EU Size |
Diameter (mm) |
Circumference (mm) |
| 5 | J 1/2 | 49 | 15.7 | 49.3 |
| 5.5 | K 1/2 | 50 | 16.1 | 50.6 |
| 6 | L 1/2 | 52 | 16.5 | 51.9 |
| 6.5 | M 1/2 | 53 | 16.9 | 53.1 |
| 7 | N 1/2 | 54 | 17.3 | 54.4 |
| 7.5 | O 1/2 | 56 | 17.7 | 55.7 |
| 8 | P 1/2 | 57 | 18.1 | 57.0 |
| 8.5 | Q 1/2 | 58 | 18.5 | 58.3 |
| 9 | R 1/2 | 60 | 19.0 | 59.5 |
| 9.5 | S 1/2 | 61 | 19.4 | 60.8 |
| 10 | T 1/2 | 62 | 19.8 | 62.1 |
How to Measure Your Ring Size
- Use a Ring Sizer: The most accurate method is using a professional ring sizer tool.
- Measure an Existing Ring: Place a well-fitting ring on a ruler and measure the inside diameter in millimeters.
- String Method: Wrap a string around your finger, mark where it meets, and measure the length.
Bracelet Size Guide
| Size |
Wrist Measurement |
Bracelet Length |
| Extra Small | 5.5" - 6" | 6.5" |
| Small | 6" - 6.5" | 7" |
| Medium | 6.5" - 7" | 7.5" |
| Large | 7" - 7.5" | 8" |
| Extra Large | 7.5" - 8" | 8.5" |
Necklace Length Guide
| Length |
Style |
Position on Body |
| 14" | Collar | Tightly around neck |
| 16" | Choker | At the base of the neck |
| 18" | Princess | At the collarbone |
| 20" | Matinee | Between collarbone and bust |
| 24" | Matinee | At the center of the bust |
| 30" | Opera | Below the bust |
| 36" | Rope | Can be doubled |
Earring Size Reference
- Studs: Typically 3mm - 8mm diameter
- Small Hoops: 10mm - 20mm diameter
- Medium Hoops: 25mm - 40mm diameter
- Large Hoops: 45mm - 60mm diameter
- Drop Earrings: 1" - 3" length
Tips for Best Fit
- Measure at the end of the day when fingers are largest
- Ensure the ring slides over your knuckle comfortably
- Consider seasonal changes - fingers can swell in summer
- For between sizes, choose the larger size
- Wide bands fit tighter than thin bands
Need Help?
If you're unsure about sizing or need assistance, our jewelry experts are here to help:
- Email: sizing@caratx.com
- Phone: 1-800-CARATX1
- Live Chat: Available Monday-Friday 9AM-6PM EST
