Fine & Demi-Fine Jewelry Manufacturing

Contract Manufacturing for Fine & Designer Jewelry Brands

OEM and ODM fine jewelry production combining digital CAD sculpting, 3D wax micro-printing, vacuum induction casting, and master stone setting. We produce rings, necklaces, bangles, earrings, and pendants in certified 925 sterling silver, solid 14K/18K gold, 950 platinum, and hypoallergenic titanium.

Sector Benchmark

  • Noble Metals Certified 925 Sterling Silver, 14K (585) & 18K (750) Gold, Pt950
  • Industrial Substrates Grade 5 Titanium, 316L Stainless Steel, Marine Brass
  • Stone Setting Micro-pave, channel, bezel, prong, and tension setting
  • Gemstone Spectrum Lab-grown diamonds, natural gems, moissanite, cubic zirconia
  • Plating Standards Heavy Gold Vermeil (up to 2.5 µm), Rhodium, PVD Gold
  • Casting Precision Vacuum pressure investment casting with zero micro-porosity
  • Hallmarking Compliance Swiss, UK, and US Assay Office hallmarking compliant
  • Production MOQ Starting from 50 to 100 units per style reference
Manufacturing Scope

Jewelry Production Modalities & Specialty Services

Advanced manufacturing techniques catering to modern fashion labels and fine diamond ateliers.

Precious Fine Jewelry

Solid Gold & Platinum Creations

Lost-wax vacuum induction casting of 14K/18K gold and 950 platinum wedding bands, cocktail rings, and pave pendants finished with diamond-lapped mirror chamfers.

  • Metal Accountability Certified millesimal fineness and assay reports
  • Micro-Porosity Zero surface pitting under 40x optical review
  • Weight Tolerances Cast weight held within ±0.15 grams
Demi-Fine & Silver

Heavy Gold Vermeil Sterling Silver

Cast and hand-polished 925 sterling silver pieces electroplated with a durable 2.5 µm layer of 18K yellow or rose gold over a protective nickel-free barrier.

  • Plating Longevity Multi-year wear resistance without tarnish
  • Core Purity Certified 92.5% pure deoxidized silver
  • Chain Integrity Laser-welded jump rings and solid lobster clasps
Modern Industrial Luxe

Precision Titanium & Steel Jewelry

5-axis CNC machined titanium and 316L steel geometric cuffs, minimalist bands, and link bracelets engineered for extreme durability and hypoallergenic comfort.

  • Surface Hardness Highly resistant to deformation and scratches
  • Color Execution High-vacuum PVD in Charcoal, Blue, and Gold
  • Allergy Safety 100% bio-compatible and nickel-free
Quality Benchmarks

Jewelry Quality & Compliance Standards Matrix

Strict manufacturing tolerances, metrology audits, and regulatory standards applied across every production batch.

Production Standard Commercial Fashion Jewelry Fullion Fine Jewelry Benchmark Testing Protocol
Alloy Purity Audit Uncertified scrap melt Certified casting grain with full assay certificates X-ray Fluorescence (XRF) spectrometry audit
Gold Plating Thickness Decorative flash dip (< 0.05 µm) Heavy Gold Vermeil standard (up to 2.5 µm) XRF thickness measurement & cross-section test
Stone Setting Retention Glued or shallow crimping Hand-burred micro-seats with mechanical prong fold Ultrasonic vibration retention & 30x optical audit
Skin Contact Safety May release nickel or lead Compliant with EU REACH & California Prop 65 Standardized EN 1811:2011 artificial sweat leaching test
Production Protocol

Precision Manufacturing Workflow

From technical design audit and rapid pilot prototyping to full-scale batch fabrication and white-glove quality assurance.

PHASE 01

DFM Review & Tooling Setup

Our engineers inspect your 3D digital CAD files to optimize machining toolpaths, clamping datums, and tolerance stack-ups for cost-effective fabrication.

PHASE 02

Master Prototyping & Quality Audit

First-article pilot samples are machined on high-rigidity CNC equipment, measured on 3D CMM coordinate probes, and delivered for tactile and functional approval.

PHASE 03

Batch Manufacturing & Surface Lapping

Batch manufacturing utilizes multi-axis Japanese CNC equipment, robotic surface buffing, and master hand-applied satin graining under strict statistical controls.

PHASE 04

Cleanroom Assembly & Worldwide Logistics

All critical sub-assembly and casing occurs in ISO Class 10,000 cleanrooms to eliminate airborne contaminants, followed by global fulfillment drop-shipping.

Technical Guidance

Frequently Asked Questions

Common technical, operational, and commercial questions regarding contract manufacturing standards for this industry sector.

Can Fullion supply gemstones and lab-grown diamonds, or can we send our own stones?

We offer both options. We maintain certified supply chains for lab-grown diamonds (IGI/GIA certified), natural precious stones, and AAA cubic zirconia, but we also welcome client-supplied stones for precision bench setting.

What is the difference between gold plating and your gold vermeil?

Standard gold plating is a micro-thin flash layer (0.05 µm) over base metals like brass. Our gold vermeil consists of a certified 925 sterling silver core coated with a minimum of 2.5 µm of real 18K gold, delivering lasting luxury at accessible price points.

Do you provide custom hallmarking with our brand trademark?

Yes. We utilize precision laser engraving to mark brand logos, copyright marks, metal fineness hallmarks (e.g., 925, 750, 585), and unique serial numbers on internal ring shanks and clasps.

How do you protect sterling silver jewelry from tarnishing in retail displays?

All our sterling silver outputs are treated with an electrolytic anti-tarnish barrier followed by optical rhodium plating or specialized nano-e-coating, ensuring pieces remain bright and tarnish-free on retail shelves.

Start Your Production Project

Manufacture with Fullion Precision

Send us your 3D CAD files, design sketches, or project specifications. Our engineering desk will deliver an exhaustive DFM review, tooling proposal, and quotation within 24 business hours.

Submit Request for Quotation