We have been focusing on brass and stainless steel jewelry craftsmanship for 20 years, accurately understanding the design concepts of global brands, using mature mass production technology to solve quality concerns about bulk goods, and leveraging an efficient supply chain to ensure on-time shipments. This page also extends to custom silver jewelry, helping turn unique designs into successful products in the market.
We launch innovative designs every day to help your brand stay competitive and fresh in the market. Each new product is rigorously tested to ensure compliance with international standards and environmental requirements — supporting reliable silver jewelry manufacturers and partners who value both creativity and quality.
We launch innovative designs every day to help your brand stay competitive and fresh in the market. Every new product is rigorously tested to ensure compliance with international standards and environmental requirements.
We not only provide basic OEM production services, but also build a complete SH service system covering market trend insights, flexible manufacturing, and guaranteed production capacity. This ensures more efficient delivery and product designs that align with market demand. Whether for mature or fast-growing e-commerce brands, StarHarvest offers fast response, differentiated technology, and zero-risk supply chain support, achieving a seamless connection from design concept to product shelf. With extensive experience as a silver jewelry manufacturer, including capabilities as a silver 925 jewelry manufacturer and custom silver jewelry specialist, we are committed to delivering high-quality and market-ready solutions.
Since 2005, we have been focusing on the production of brass and stainless steel jewelry with mature technology and stable quality, and have expanded capabilities as a custom silver jewelry supplier.
A minimum order of 200 pieces/item quickly responds to the needs of emerging brands and reduces inventory pressure, ideal for launching custom brass jewelry.
From design to sample, the average cycle is 7–15 days, which shortens development time and speeds up product launch, supported by efficient custom silver jewelry services.
From material procurement, production and processing to quality inspection and packaging, all are completed in our own brass jewelry factory to ensure stable delivery and quality.
We provide special electroplating, laser engraving, texture patterns, and other self-developed technologies to help your brand establish exclusive product tonality, supported by experienced silver jewelry manufacturers and custom silver jewelry services.
Unique SH-P quality system and multi- step QC process ensure that each product meets your needs and reduces quality issues.
Sufficient production capacity allows timely stocking regardless of peak or off-peak seasons, helping you respond efficiently to changes in market demand with reliable silver jewelry manufacturer support.
We provide professional and flexible OEM customization services, from raw materials to finished products, ensuring each piece aligns with your market positioning and brand tone. Whether it is new design development or existing product optimization, we can create products with stable quality and reliable delivery, supported by our expertise as a sterling silver jewelry manufacturer, and provider of custom silver jewelry solutions.
We specialize in OEM/ODM customized production of brass and stainless steel (316L/304) jewelry, providing full-process customization of material hardness, thickness, and surface treatments (polished/brushed/vintage/PVD gold-plated rose gold, etc.), with samples ready in 7–10 days to verify design feasibility. As a silver jewelry manufacturer, we also support environmentally friendly coatings and low-sensitivity alloys to ensure products meet global market standards.
Over 20 years of experience in jewelry customization, with a total of 12,000+ brass and stainless steel styles developed. Industrial-grade 3D scanners (±0.03mm accuracy) achieve millimeter-level restoration of design drafts, maintaining material hardness and color consistency from samples to bulk goods. As a trusted silver jewelry manufacturer, each product design includes NDA agreement signing, sample packaging material development, and export compliance certification hosting. You only need to focus on design and leave the rest of the production supply chain to us for execution.
SH provides a variety of gemstone options, including natural gemstones directly mined from mines/laboratory-grown diamonds/artificial gemstones. You can freely choose according to your needs. All gemstones are certified with IGI/GIA dual certificates, and support customized solutions from special-shaped cutting to micro-setting processes, as well as complying with RJC system metal traceability standards. 48-hour ultra-fast proofing reduces development risks.
We can provide various electroplating layers, such as 10k, 14k, 18k, and 22k according to your needs, and support electroplating color options including single color, multi-color, and gradient. Using SH-type vacuum coating technology, the electroplating color retention exceeds 3 years in wear tests (in line with EN 12472 artificial sweat test). The special color-plating solution library supports accurate restoration of metal color numbers, while electroplating solution ingredients can be traced, meeting RoHS/REACH heavy metal migration control requirements. As a reliable custom silver jewelry producer, we ensure consistent and compliant quality
Supports the design and development of 127+ jewelry accessories including chains, clasps, and link rings. Years of fine processing and manufacturing experience ensure lead-free solder joints and ASTM F2923 tensile strength standards. As a brass jewelry factory with established brass jewelry manufacturing capability, and compatible with custom brass jewelry production, the use of German precision cutting equipment allows accessory processing tolerances below 0.1mm. One-stop customization covers logo stamping and packaging materials, and supports a variety of materials such as brass and stainless steel, in compliance with Annex XVII of REACH regulations.
Over 20,000+ brass and stainless steel basic style libraries, you can choose any modification, including logo stamping, size adjustment, accessory replacement, font elements, pattern customization and other requirements. All products meet environmental certification and can provide corresponding quality inspection reports, and comply with ISO 9001 quality system and Amazon FBA packaging specifications, helping you to quickly distribute products with minimal development costs.
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Copper and stainless steel raw materials entering the brass jewelry factory must be inspected. The inspection content includes verification of component reports, surface finish, and hardness to ensure that the metal raw materials comply with ROHS & REACH standards, controlling quality from the source and guaranteeing that every piece of custom brass jewelry produced by our brass jewelry manufacturing meets the highest standards.
3D scanning compares the design drawings to check the wax model size error (within ±0.1mm), hollow details, and overall proportions to prevent later rework caused by mold deviation.
After casting, the embryos are 100% inspected for trachoma, bubbles, and deformation, and the internal structure is inspected by X-ray to ensure there are no invisible defects.
Double inspection by manual and machine ensures that the welding points are firm, the lines are smooth and free of burrs, and the surface flatness meets the standards (sampling rate 30%, 100% for high-risk models).
Check for residual stains after ultrasonic cleaning, test surface adhesion after pickling, and compare the color plate with the opponent’s plate to avoid color difference after electroplating.
Salt spray test + abrasion test sampling, visual inspection of mirror/matte process halo uniformity, coating thickness meter detection (0.03μm accuracy), additional test of anti-fingerprint layer.
Both functionality and aesthetics are ensured – fastener opening and closing tests are conducted 500 times, stone setting firmness is tested through vibrations, scratches/discoloration are checked visually, and AQL inspection reports for each batch are kept on file.
Check order requirements (lettering, accessories, packaging), use metal detectors to check for residual debris, scan anti-theft labels/environmental labels one by one, and conduct a second random inspection before sealing the box
