This round diamond three-stone engagement ring model showcases timeless elegance with refined structural detailing. The center round brilliant stone is secured in a classic four-prong setting, designed to maximize light reflection and brilliance. Two pear-shaped side stones complement the center, creating a balanced and graceful silhouette that enhances finger coverage and overall sparkle.

The shoulders are adorned with small accent stones, adding subtle brilliance without distracting from the main diamond. The gallery structure features clean, supportive architecture that ensures strength during casting and secure stone setting. The shank is proportioned for both durability and comfort, with a smooth inner surface suitable for daily wear.

This CAD model has been professionally prepared for jewellery manufacturing. Stone seats, prong positioning, metal thickness, and spacing are optimized for casting and finishing. The geometry is clean and production-friendly, ensuring smooth polishing and accurate stone mounting.

The design is ideal for engagement rings, bridal collections, and custom fine jewellery projects. It performs beautifully in yellow gold, white gold, rose gold, or platinum, offering flexibility for different market preferences.

Included Files

• STL file (ready for 3D printing and casting)• 3DM file (editable Rhino file for customization)

Important Points

• Production-ready and casting-optimized design• Accurate round stone seat and prong alignment• Strong and balanced gallery structure• Clean surface geometry for smooth finishing• Comfortable inner band design• Easy resizing and customization• Suitable for gold and platinum manufacturing

Customer Support

We provide reliable post-purchase support to ensure smooth production.

For ring size changes, stone dimension adjustments, shank thickness modification, metal weight optimization, or other custom requirements, feel free to contact us. We respond quickly and offer professional CAD assistance to meet your manufacturing needs.

Custom jewellery design services are available upon request.