Budget (optional)
A range is enough — we build the quote around it. Most custom lab-grown rings land between $2,500 and $7,500.
Shape, metal, carat feel (e.g. ~2ct), setting style — whatever you know. Leave blanks; we’ll fill them in together.
US sizes. Unsure? Skip — most land between 5–7. Open the size guide below anytime.
Ring size guide (US)
Most engagement rings land between US 5–7. Unsure? Leave size blank on your quote — we’ll help you confirm before CAD.
How to measure
- Wrap a thin strip of paper around the base of the finger.
- Mark where it overlaps; measure the length in millimeters.
- Match that circumference to the chart below.
Measure at the end of the day, when fingers are warm. If between sizes, size up slightly for wider bands.
| US | Circumference (mm) | Diameter (mm) |
|---|
| 4 | 46.8 | 14.9 |
|---|
| 4.5 | 48.0 | 15.3 |
|---|
| 5 | 49.3 | 15.7 |
|---|
| 5.5 | 50.6 | 16.1 |
|---|
| 6 | 51.9 | 16.5 |
|---|
| 6.5 | 53.1 | 16.9 |
|---|
| 7 | 54.4 | 17.3 |
|---|
| 7.5 | 55.7 | 17.7 |
|---|
| 8 | 57.0 | 18.1 |
|---|
| 8.5 | 58.3 | 18.5 |
|---|
| 9 | 59.5 | 19.0 |
|---|
| 9.5 | 60.8 | 19.4 |
|---|
| 10 | 62.1 | 19.8 |
|---|
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