Graduated Diamond Bar Pearl Drop Pendant CAD Model | Lariat Prong Bar STL File

Description

This graduated diamond bar pearl drop pendant CAD model is built around a straight slim bar structure — 41.24mm in length and only 5.34mm wide — carrying 17 round brilliant diamonds in individual open prong mounts arranged in a precise symmetric center-out graduation. The largest stone (2.55mm) sits at the bar center, with matching pairs graduating symmetrically toward both ends down to 1.325mm. This mirror-symmetric layout simplifies setting quality control and produces a consistent, verifiable pattern that suits systematic production workflows. A single 12mm pearl in a cap-mount drop finishes the pendant base.

The straight bar casting geometry, open prong spacing, and minimal metal cross-section between stone stations produce an ultra-low wax CNC weight of 0.27g — the lowest of any pendant in this production series — and metal weights ranging from 3.10g in 925 Silver to 6.18g in Platinum. The slim, low-mass structure supports high casting reliability with minimal sprue complexity and delivers strong polishing accessibility across the entire bar length. Individual stone prong mounts are fully accessible for re-tipping and in-field repair without frame disassembly.

The pearl cap-mount at the bar base accommodates South Sea golden and white, Akoya, freshwater pink and white, and Edison pearl varieties in the 11–13mm size range — enabling multiple retail SKU colorways from a single casting. The CAD file is optimized for both wax printing and CNC milling workflows and is compatible with Rhino 7+ and JewelCAD 5.x production environments.

Production Analysis

• Casting Readiness: Very High — straight slim bar geometry with consistent cross-section is one of the simplest and most reliable casting forms in fine jewelry production; minimal undercut risk throughout; clean sprue attachment at bar top.
• Stone Setting Difficulty: Low-Medium — 17 individually prong-set round brilliants in a straight line; symmetric center-out graduation is straightforward to verify during setting; no curved path, dense pavé, or complex spatial positioning required.
• Polishing Accessibility: Very High — flat bar exterior and open prong spacing allow full wheel and hand polish access along the entire 41.24mm bar length; no interior channels, scroll geometry, or recessed zones to navigate.
• Mass Production Suitability: High — straight casting geometry, low stone count, individual prong setting, ultra-low wax weight (0.27g), and lightweight metal structure support scalable small and mid-volume production runs with consistent quality output.
• Recommended Metals: 14K Gold (YG/WG/RG), 18K Gold (YG/WG/RG), Platinum (PLAT/PLAT RU), 925 Silver — all metal options validated; rose gold with South Sea golden pearl and white gold with pink freshwater or Akoya white pearl are the two primary colorway configurations.

Market Fit Analysis

• US Market Fit: Very Strong — the lariat-style diamond bar pearl drop pendant is a proven US fine jewelry retail format; the clean contemporary silhouette and accessible price point relative to diamond + pearl content targets a broad buyer demographic from everyday luxury to bridal gifting.
• Etsy Compatibility: Very High — minimalist diamond bar pearl pendant is one of the strongest Etsy pearl necklace search categories; production simplicity supports competitive retail pricing while the graduated diamond bar adds visible design value over basic pearl pendant formats.
• TikTok Jewelry Potential: Very High — the long slim diamond bar with large pearl drop creates strong on-camera movement and light reflection; pendant sways dynamically with body movement; rose gold + golden pearl is a highly photogenic TikTok colorway.
• Pinterest Visual Appeal: High — minimalist lariat diamond bar pearl pendant performs consistently in contemporary fine jewelry, everyday luxury, and bridal necklace Pinterest discovery boards.
• Commercial Flexibility: Very High — standard cap-mount pearl seat supports multiple pearl varieties and colors (South Sea, Akoya, freshwater, Edison); three gold colorways plus platinum generate a broad SKU matrix from a single high-efficiency CAD file; low production cost relative to pearl + diamond content supports strong retail margin potential.

Product Specifications

Jewelry Costing: Calculate production costs with our Jewelry Pricing Calculator.

FAQ

Q: How does the symmetric center-out diamond graduation affect the setting workflow versus a simple tapered or uniform bar?
A: The symmetric pattern — identical pairs of each stone size mirrored from center outward — makes quality control straightforward. The setter works from the center stone outward in matching pairs, verifying symmetry at each step. There are no ambiguous sizing decisions or complex spatial positioning requirements. This is significantly more setter-friendly than asymmetric graduated bars or multi-direction pavé layouts, and the 17-stone count keeps total setting time efficient for a diamond bar pendant at this price point.

Q: Can this CAD model support different pearl sizes without structural modification for multi-SKU production?
A: Yes. The open cap-mount pearl seat at the bar base accommodates round pearls in the 11–13mm size range without CAD modification. South Sea golden and white, Akoya, freshwater pink and white, and Edison pearl varieties all fit within this range. Combined with three gold colorways and platinum, this CAD file can generate a wide retail SKU matrix from a single casting and setting workflow, which is a significant production efficiency advantage for jewelry factories and multi-SKU retail operations.

Q: What makes this the most mass-production-suitable pendant in the graduated diamond bar pearl series?
A: Three structural factors combine: (1) straight bar casting geometry with consistent cross-section and no complex three-dimensional frame — the most reliable casting form in fine jewelry; (2) the lowest wax weight (0.27g) in the series, confirming minimal material use and fast print cycles; and (3) individual prong-set stones in a straight symmetric line — no curved pavé paths, no scroll arm sequences, no multi-zone assembly stages. All three factors reduce cycle time, lower production risk, and support consistent quality across repeated production runs.