This premium 3D CAD model features a timeless and elegant solitaire engagement ring, masterfully designed with a prominent pear-cut central gemstone. The design utilizes a sophisticated 5-prong setting—including a protective V-prong at the stone's delicate tip—ensuring both maximum security for the gemstone and an exceptionally sleek, modern aesthetic.

The shank transitions gracefully into a delicate, high-polished Cathedral style, elevating the center setting for a striking, light-catching profile. This production-ready asset is optimized perfectly for high-end digital rendering, e-commerce visualization, and flawless 3D printing for direct-casting workflows.

Technical Specifications & DimensionsGemstone DetailsCenter Stone Shape: Pear Cut

Dimensions: 8.50 mm × 5.50 mm

Total Gem Weight: Approximately 0.95 ct (Diamond equivalent)

Gem Count: 1 (Solitaire configuration)

Model Dimensions (Default)Finger Size: US 6.5 (Inside diameter approximately 16.92 mm)

Shank Width (Top/Shoulders): 1.70 mm

Shank Width (Bottom): 1.50 mm

Shank Thickness (Side profile): 1.60 mm

Setting Height (From finger top to table): 5.40 mm

Prong Wire Diameter: 1.00 mm

Estimated Metal Weights (Size US 6.5)9K Yellow Gold: 1.94 g

10K Yellow Gold: 2.00 g

14K Yellow Gold: 2.26 g

18K Yellow Gold / Rose Gold: 2.70 g

22K Yellow Gold: 3.13 g

9K White Gold (PdW): 2.20 g

14K White Gold (14KX1): 2.21 g

14K White Gold (PdW): 2.52 g

Included Files & Package StructureThe download includes a comprehensive suite of file formats to accommodate both manufacturing and digital rendering pipelines. For maximum convenience, all assets are neatly organized and archived within a single .RAR package, as well as provided individually:

Native CAD Design (.3DM): The primary Rhinoceros / Gemvision Matrix file containing clean geometry with proper layers, perfect for structural modifications or tolerance adjustments.

Dedicated Rendering File (.3DM): Setup specifically for high-fidelity jewel rendering, featuring organized material assignments and optimized surface shading.

3D Printing File (.STL): A fully closed, manifold, error-free mesh. This file has been inspected, repaired, and verified for perfect execution on professional SLA/DLP 3D printers (such as Formlabs, Asiga, or EnvisionTEC).

NURBS Exchange Format (.STEP): Ideal for importing into high-precision engineering software or parametric modelers like Autodesk Fusion 360.

Polygonal Formats (.OBJ & .FBX): Cleanly triangulated and quad meshes, fully compatible with external 3D software (Blender, 3ds Max, Maya) for architectural visualization, animations, or digital showcases.

High-Resolution Visuals: Multiple professional digital studio renders demonstrating the ring from Top, Front, Right, and Perspective angles, ready for marketing use.

Manufacturing & Quality FeaturesPrototyping Ready: The STL mesh is completely watertight (no open edges, no non-manifold geometry), ensuring a direct plug-and-play experience for 3D printing and investment casting.

Metal & Stone Safety: Prong thicknesses, seat depth allotments, and gallery rail positioning are configured to withstand the mechanical stresses of manual stone-setting while maximizing light entry into the pavilion of the gem.

Polishing Allowance: Wall thicknesses take standard workshop polishing and finishing losses into consideration to achieve the exact target dimensions post-casting.

Customization & Support NoticeThis model is completely adaptable to meet specific client demands or regional manufacturing standards. Upon request, the following modifications can be performed to fit your exact specifications:

Resizing Service: Full scaling and remodeling of the ring band to any standard international size (US, UK, EU, or mm inside diameter) while maintaining structural proportions.

Center Stone Adaptation: Restructuring of the prongs, collet, and gallery rail to accommodate different gemstone cuts (e.g., Oval, Emerald, Radiant, or Brilliant Round) or alternative millimeter dimensions.

Please contact me directly through the CGTrader messaging platform for any custom file conversions, resizing requests, or technical support queries regarding this asset.