YOUR STRATEGIC MANUFACTURING PARTNER

Advanced Custom Jewelry Development & Manufacturing Solutions

At Lonsin, we don’t just manufacture; we refine. We bridge the gap between design vision and high-end reality through expert material fusion (316L Stainless Steel, Titanium, Tungsten, Ceramics) and structural optimization. From initial concept to market-ready perfection, we ensure every piece reflects the ultimate luxury aesthetic and durability.

Two Paths to a Distinctive Jewelry Collection

Lonsin offers two custom jewelry development paths: original design development and private label jewelry development from selected Lonsin styles. Whichever path you choose, we preserve the intended design identity while bringing form, balance, texture and finish into harmony—so every piece feels refined, distinctive and true to your brand, with the craftsmanship required for reliable production.

Custom OEM Jewelry Development with Precision CAD Engineering and IP Protection.

Develop From Your Original Design

Bring us your sketches, CAD files, renderings or physical reference samples. We remain faithful to the original vision, then translate its lines, proportions, surfaces and settings into jewelry that feels as considered in the hand as it appears on the page.

ODM Stainless Steel Rings Pendants Necklaces Bracelets Wholesale for Private Label Brands.

Develop From Our Jewelry Styles

Our private label jewelry development begins with a Lonsin style that fits your collection. We develop it around your brand through careful changes to its shape, materials, stones, colors, finishes and signature details, so the finished piece feels distinctive, refined and naturally connected to your collection.

The Capabilities Behind Refined Custom Jewelry

Our team brings 6+ years of custom jewelry development experience across 316L stainless steel, specialist materials, PVD finishing and controlled production. For suitable designs, sample lead times start from 7 days, while approved samples and project specifications guide batch and repeat production. Each step helps protect the original design and bring its beauty into the finished piece.

01.High-Performance & Specialist Materials


316L at the Core: 316L stainless steel is our main material for modern jewelry with lasting strength and a refined finish..

Specialist Materials: Titanium, tungsten carbide, ceramic, carbon fiber and 925 sterling silver offer different colors, weights, textures and design possibilities.

Designed Combinations: Add leather, natural wood, stones, silver or other elements when they bring the right contrast, depth and character to the finished piece.

02. Precision Craft & PVD Finish


Original Design First: Keep the shape, flow, proportions and signature details that make each piece unique and true to the original idea.

Controlled Size: For suitable CNC-machined rings, specified dimensions can be controlled to ±0.05 mm, depending on the material, structure and design.

Surface & Color: Use polishing, brushing, engraving, textured finishes and PVD coating to achieve the approved color, shine, detail and surface effect.

03. Design, Sample & Approval


Confidential Design Input: Work from sketches, CAD files, renderings or physical reference samples, with NDA support available for confidential project details.

Sampling From 7 Days: Sample lead times start from 7 days for suitable designs, while complex materials, structures and stone settings need project-based timing.

Approval Before Production: Confirm the material, size, stone setting, PVD color, surface finish and key details before production begins.

100% Manual Quality Inspection for Lead-Free REACH Compliant Jewelry Parts.

04. Quality for Repeat Production


Approved Production Standard: Use the confirmed sample and project specifications to guide batch and repeat production from the first order onward.

Key Quality Checks: Review the material, size, PVD color, polish, texture, stone setting, joining points, surface quality and other approved details.

Testing When Required: Arrange suitable coating thickness, wear, material or compliance testing according to the product, construction, finish and target market requirements.

What Custom Jewelry Development Should Deliver

More than making a design possible, Lonsin preserves its identity, brings out its beauty and carries approved details into reliable repeat production.

Transform original design concepts into exclusive, market-ready jewelry assets.

True to the Original Design

We preserve the shape, flow and signature details, while solving production needs without changing the meaning of the original design.

Design Develop From Our Jewelry Styles

Refined in Look and Feel

We review balance, lines, stone setting, color, shine, surface finish and comfort so the finished jewelry feels refined and complete.

Strategic small batch jewelry manufacturing for professional market validation.

Stable Production, Consistent Quality

More than making a design possible, Lonsin preserves its identity, brings out its beauty and prepares it for stable production, consistent quality and reliable delivery.

The Lonsin Standard: Quality Without Compromise

Whether you choose a ready-to-sell design or a complex custom project, our quality foundation never changes. Every piece we deliver is built to the same high-end export standards for safety, beauty, and long-term wear.

Engineering Long-Lasting Brilliance with PVD Technology

Our performance-led manufacturing process utilizes advanced PVD (Physical Vapor Deposition) technology on high-grade 316L Stainless Steel, Titanium, and Tungsten. Unlike traditional plating, this molecular-bonding process ensures a 100% waterproof and non-tarnish surface that withstands seawater, sweat, and daily showers. It is the definitive choice for premium everyday jewelry brands seeking timeless brilliance.

01. Verified Material Purity

We use high-grade Titanium, 316L S.ST, Tungsten, etc.. Every batch is checked to ensure it’s 100% genuine and tarnish-free.

Hypoallergenic nickel-free lead-free jewelry for sensitive skin, meeting global export safety standards.

02. Safe for Every Skin Type

Your customers' comfort is our priority. All materials are Nickel-free and Lead-free, meeting the world’s strictest safety standards.

100% waterproof jewelry with salt-water testing for durable high-end export quality.

03. Built for Daily Life

Our jewelry is 100% waterproof. We perform 24-hour or 48-hour salt-water & wear tests to ensure the finish stays perfect through years of daily use.

Expert hand-polishing and manual inspection for flawless, luxury high-end export jewelry.

04. The Human Touch

Machine precision is only the start. Our expert team hand-polishes and inspects every single piece to guarantee a flawless, luxury feel.

Strategic Solutions FAQ

Ans: Private Label is best for speed. You can select from our proven designs and add your logo to launch quickly with low risk.

Ans: Our Custom Development team will review your files and provide a technical plan and quote within 48 hours.

Ans: Yes. We manage your entire supply chain, allowing you to mix private label and custom items to save on logistics and time.

Ans: Every project is protected by a strict NDA. Your ideas and designs are kept confidential and are never shared with others.

Ans: Private label takes 3-5 weeks, while custom projects take 4-8 weeks depending on the complexity of the design.

  • Ans: We utilize advanced PVD coating technology applied to high-performance metals like 316L Stainless Steel, Titanium, and more. This creates a high-durability barrier that is 100% resistant to seawater, sweat, and daily showers, ensuring timeless brilliance for high-end everyday wear.

EXCLUSIVE PARTNER ACCESS

Ready to Choose Your Success Path?

Invest in jewelry that stays brilliant forever. Our experts are ready to help you develop a waterproof, non-tarnish collection that defines your brand’s excellence.

Contact our experts today to find the most efficient manufacturing strategy for your brand’s next big launch.Ready to Choose Your Success Path?

Our suitable solution will be sent to your email immediately after submission & mutual communication.

The latest catalog will be sent to your email immediately after submission.