Custom Jewellery CAD Design

I have a set of hand-drawn concepts and reference photos that now need to become fully-engineered CAD files ready for production. Your task is to translate my ideas into accurate 3D models that a manufacturing house can cast without surprises... (Budget: ₹12500 - ₹37500 INR, Jobs: Keyshot, Rhino 3D, V-Ray, Zbrush)