Convert Jewelry Photos to 3D CAD

I have an ongoing stream of simple rings, necklaces, earrings, and bracelets that I need converted from my reference photos into clean, production-ready CAD.

Here’s how I’d like to work:
I want 9 sets (earrings and necklace, bracelet and ring)
Every set has the same design
For every design/set my budget is 6 USD
Tell me whether you prefer that rate per file
I will start with 2 sets as a trial.
•Accepted deliverables are the native file from your platform of choice—Rhino, Matrix, ZBrush, etc.—plus an STL or STEP export so my caster can pick up the job immediately.

When you reply, include or link to two or three sample pieces that show similar, straightforward jewellery you have modelled in CAD. Once we agree on terms, I’ll send the first photos with their dimensions and we can get started right away.