This is a high-quality pear diamond engagement ring 3D model, sculpted with extremely sharp, clean, and refined details.The flowing organic shank and sculptural prongs are executed with crisp carving quality and smooth curvature flow, ensuring excellent clarity and precision in real jewelry production.

The model has been designed and tested for actual manufacturing, with proven results in CNC carving, jewelry casting, and 3D printing workflows.All surfaces are clean, structurally solid, and optimized for reliable production, not decorative rendering.

This is a production-ready fine jewelry ring model, suitable for professional jewelers and CNC workshops.

Technical Specifications

File formats: STL, OBJ

Ring type: Diamond engagement ring

Center stone: Pear diamond

Center stone size: 11.77 × 7.62 mm

Center stone weight: approx. 2.54 ct

Side stones: Round diamonds

Side stone size: 1.50 × 1.50 mm

Side stone count: 2

Total diamond weight: approx. 2.56 ct

Inner diameter: approx. 18.37 mm

Ring size: approx. US 8.25 – 8.5

Head height: approx. 6.53 mm

Shank thickness (bottom): approx. 1.63 mm

Units: Millimeters (mm)

Mesh: Clean topology, watertight geometry

Undercuts: Controlled and casting-safe

Approximate Metal Weights

(Calculated using professional jewelry metal weight tools; actual weight may vary slightly depending on finishing)

Yellow Gold 9K: ~2.94 g

Yellow Gold 10K: ~3.04 g

Yellow Gold 14K: ~3.42 g

Yellow Gold 18K: ~4.09 g

Yellow Gold 22K: ~4.75 g

White Gold 14K: ~3.35 g

Manufacturing Notes

Extremely sharp details with crisp carving edges

Secure pear-shape stone seat with balanced prongs

Organic shank optimized for casting stability

No fragile micro-details

Ready for resizing by professional jewelers

Suitable for gold, white gold, or platinum

Applications

Engagement ring

Bridal fine jewelry

CNC-carved or cast jewelry

Custom or high-end jewelry collections

Concept

This ring combines organic flowing lines with precise stone setting, creating a refined but production-safe design.The focus is on stone security, clean structure, and manufacturing reliability, making it ideal for real commercial fine jewelry.