AI Jeweler · first model free
Tennis bracelet: photo to 3D CAD, gold weight and price
A tennis bracelet is a stone run with a clasp. The studio lays the stones along the real length, counts them, adds the clasp and prices the stones, metal and per-stone setting time.
The numbers that matter
- Length
- 17–18 cm fits most women; 19–20 cm for men; add 1.5 cm to the wrist measurement.
- Stones
- 3 mm rounds (0.1 ct each): an 18 cm bracelet holds about 55 stones, 5.5 ct total.
- Weight
- 18K links and settings for 3 mm stones weigh 9–13 g; larger stones need heavier settings.
- Clasp
- Box clasp with a safety figure-eight is the standard; priced as its own component.
What the AI extracts
- Every component as parametric geometry: band, setting, prongs, halo, links, clasp
- Each stone group with cut, size in mm and estimated carat weight
- Metal colour and, where a hallmark or document shows it, the karat
- A gem report and a metal-weight table for 9K to 24K, platinum and silver
- A price estimate: new, pre-owned or to be made, natural or lab-grown, per country
Things you can say
- “Make it 18.5 cm long”
- “Use 2.5 mm stones”
- “Add a box clasp with a safety”
- “Price it pre-owned in the United States”
Frequently asked
- Is the carat total accurate?
- Stone size is measured from the photo against the bracelet width, or taken from a certificate; count comes from the length. The report labels which is which.
- Why is the lab-grown price so much lower?
- Lab-grown melee and small rounds trade at a small fraction of natural, and hold little resale. The estimate shows both origins so the difference is explicit.
- Can I export the CAD?
- Yes: STL / OBJ / GLB exports of the assembled bracelet, segment by segment.