At Star Harvest, we eliminate the risks of allergies, fading, and breakage through 20 years of R&D and engineering experience.
30+ Engineers & Process Experts ensuring 1:1 restoration of CAD designs.
Ethical sourcing with 100% purity screening before entering our warehouse.
High precision casting ensures high density and eliminates porosity bubbles.
Anti- fingerprint coating, anti-rust treatment, anti-breakage buckles.
Advanced PVD and Multi-layer Electroplating for superior longevity.
Strict execution of AQL 2.5 inspection standards with in-house labs.
We reject batches that fail purity tests so your customers stay safe
We offer Gold/PVD plating that survives real-world wear.
We optimize wall thickness and joint strength before molding.
We create accurate wax models through controlled mold opening, wax injection, and tree assembly, ensuring consistent dimensions and a stable foundation for casting.
Wax trees are plastered, dewaxed, and cast in controlled conditions, allowing molten metal to fill fine details before careful plaster removal.
Cast pieces are separated from trees, assembled, welded, and precisely adjusted to achieve correct structure, alignment, and overall jewelry form.
Surfaces are refined through grinding, copper plating, texturing, and polishing to improve smoothness, durability, and readiness for final finishing.
Final plating is applied for appearance and protection, followed by inspection and secure packaging to ensure quality consistency before delivery.
Our brass/stainless steel products must undergo a rigorous 72-hour tumble test on a tumble tester before leaving the factory. Based on the ASTM transportation test standard, through preset high-speed rotation, multi-angle drops and continuous impacts, we proactively expose hidden dangers such as the risk of jewelry buckle breakage, minute cracks in the electroplating layer, and the probability of loosening of inlaid accessories. This ensures that OEM/ODM ordered jewelry can withstand multiple transit bumps in sea and land transportation, reducing the transportation loss rate of your customized products to less than 2%, and the intact rate for consumers exceeds 99%.
Each lobster clasp is tested by a custom buckle tester for cyclic opening and closing (ASTM F2923 standard), simulating the extreme external force scenarios of pulling and accidental contact during daily wear, and accurately recording the critical fatigue value of the buckle spring, the deformation threshold of the card slot, the wear cycle of the electroplating layer, etc. Our brass/stainless steel lobster clasp can bear a load of 35N, and the opening and closing life exceeds 5,000 times (the industry average is 3,000 times), and the defective rate of factory products is reduced to less than 0.3%.
Each batch of brass/stainless steel raw materials and finished products are tested by a high-sensitivity environmental testing machine (GC-MS/ICP-OES combined) to accurately screen the release of lead, cadmium and nickel. We identify hidden risks such as electroplating solution residues, metal allergens, and phthalates in plastic accessories in advance to ensure that your custom jewelry has a zero recall record and avoid cross-border customs detention and consumer health litigation disputes.
