Find Your Ring Size
- Wrap a flexible measuring tape, string, or a thin strip of paper snugly around the base of the finger where you’ll wear your ring.
- If using string or paper, mark where the ends meet.
- Lay it flat and measure the length in millimeters.
- Compare your measurement with the size chart below.
If you’re between sizes, we recommend sizing up.
| Ring Size | Circumference (mm) |
|---|---|
| 3 | 44.2 |
| 3.5 | 45.5 |
| 4 | 46.8 |
| 4.5 | 48 |
| 5 | 49.3 |
| 5.5 | 50.6 |
| 6 | 51.9 |
| 6.5 | 53.1 |
| 7 | 54.4 |
| 7.5 | 55.7 |
| 8 | 57 |
| 8.5 | 58.2 |
| 9 | 59.5 |
| 9.5 | 60.8 |
| 10 | 62.1 |
| 10.5 | 63.3 |
| 11 | 64.6 |
| 11.5 | 65.9 |
| 12 | 67.2 |
| 12.5 | 68.5 |
| 13 | 69.7 |
- Select a ring that fits the finger comfortably.
- Measure the inside diameter of the ring in millimeters.
- Compare the measurement with the size chart below.
For the most accurate result, make sure you’re measuring the inside edge of the ring.
| Ring Size | Circumference (mm) |
|---|---|
| 3 | 14.1 |
| 3.5 | 14.5 |
| 4 | 14.9 |
| 4.5 | 15.3 |
| 5 | 15.7 |
| 5.5 | 16.1 |
| 6 | 16.45 |
| 6.5 | 16.9 |
| 7 | 17.3 |
| 7.5 | 17.7 |
| 8 | 18.2 |
| 8.5 | 18.6 |
| 9 | 19.0 |
| 9.5 | 19.4 |
| 10 | 19.8 |
| 10.5 | 20.2 |
| 11 | 20.6 |
| 11.5 | 21.0 |
| 12 | 21.4 |
| 12.5 | 21.8 |
| 13 | 22.2 |
We do offer a complimentary ring sizer that can accurately find your ring size. Complete the form to get a sizer sent to you, applicable only to our domestic US customers at the moment!
ENGRAVING GUIDE
Engraving is a permanent imprint design crafted by hand or machine / laser onto the surface of your jewelry, making your piece even more special, unique and memorable. Adding a meaningful story behind your gift is the perfect way to celebrate all moments and creating a personal heirloom piece that can be passed down for generations.
LEARN MORE ABOUT ENGRAVING
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About
This half version of our Catherine Eternity No.1 features 10 round, brilliant-cut diamonds mounted in a prong-setting halfway around the matte-finish gold band. The half way design allows the ring to sit comfortably on the finger. The back half of the band features our signature knife-edge technique that brings a modern element to the piece. Easy to wear and versatile in design, the Catherine Half Eternity Band will quickly become one of your go-to collection staples.
The perfect show-stopping companion for engagement rings like the Catherine Ring or the Jenny Solitaire, the Catherine Half Eternity Band can also be worn as an everyday stacking ring.
Details
- Handcrafted in 18-Karat Gold
- Available in Platinum
- 0.55 total carat weight (11 x 0.05 ct diamonds)
- Made in New York City
- STYLE JT2149R-05
Shipping
- All of our orders ship via overnight delivery
- Our in stock styles ship out within 2-3 days of purchasing
- Our made to order styles take 3-4 weeks to produce before they are ready to ship
- Local pickup is available from any of our New York locations here
- When your order is ready to ship, we'll confirm your delivery window via email or text
- An adult signature is required for all deliveries
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OUR MATERIALS
SOLID GOLD
Solid 18-karat gold and platinum responsibly sourced and majority recycled
NATURAL DIAMONDS
100% natural diamonds, ethically sourced in F/G in color and VS2 clarity
MADE IN NYC
Designed and hand crafted in New York City