OverviewThis is a high-end, production-ready 3D CAD model of a classic yet sophisticated engagement ring. Designed with precision for professional jewelry manufacturing, the model features a stunning 9x7mm Cushion-cut center stone supported by an elegant trellis-style double-prong setting. The shank is delicately accented with a bright-cut pavé of 18 round diamonds, blending timeless Victorian structural elements with modern minimalist lines.

Design DetailsThe Head: A unique four-corner double-prong (trellis) design that provides maximum security for the center stone while allowing optimal light entry for superior brilliance.

The Shank: A slim, 2.0mm comfort-fit band that tapers slightly to enhance the visual scale of the center gem.

Style: Modern Classic / High Jewelry.

Technical Specifications (Size 6.5 US)This model has been engineered for real-world casting and stone setting.

Finger Size: 6.5 US (Internal Diameter: 16.92 mm). Easily resizable in any CAD software.

Center Stone: 1 x Cushion Cut (9.00 mm x 7.00 mm) — Approx. 2.75 ct (Diamond equivalent).

Side Stones: 18 x Round Brilliant Cut (1.60 mm diameter).

Total Gem Weight: ~3.03 ctw.

Shank Width: 2.00 mm.

Shank Thickness: 1.60 mm (at base) for durability and comfort.

Setting Height: 9.10 mm from finger to top of prongs.

Estimated Metal Weights (Size 6.5 US)14K Yellow/White Gold: 3.68 grams

18K Yellow/White Gold: 4.40 grams

Platinum (950): ~6.10 grams

Silver (925): 2.95 grams

Model FeaturesPrint-Ready: The mesh is manifold (watertight) and optimized for high-resolution 3D printing (SLA, DLP, or Wax-jet).

Setting-Friendly: Stone seats are pre-cut at ideal depths, and prongs are left slightly long to allow for professional setting and polishing.

High Symmetry: Perfectly balanced geometry for a high-quality finish.

Included FilesSTL: High-poly mesh for 3D printing.

OBJ: For rendering and multi-platform compatibility.

3DM (Optional): Original Rhino/Matrix source file (if you provide it).

Technical Screenshots: Front, Top, Right, and Perspective views with dimensions.

Keywords (Tags for CGTrader)Jewelry, Ring, Engagement, Cushion Cut, Diamond, Wedding, Luxury, 3D Printing, CAD, Jewelry Design, Trellis Setting, Pavé, Gold Ring, Solitaire, Printable.

Pro-Tips for your CGTrader Listing:Thumbnail: Use a high-quality beauty render (gold/diamond) as your first image.

Video: If you can, make a quick 360° turntable video.

Pricing: For a production-ready file like this, common pricing ranges from $15 to $35, depending on whether you include the source file (.3DM).