Engagement, halo, signet, stacking and men’s rings in 925 sterling silver, brass and 316L stainless steel. CAD, casting, stone setting and plating all under one roof in Guangzhou.
Endless Jewelry is a ring manufacturer in Guangzhou, China, supplying jewellery brands, importers and online sellers across the US, EU, UK and Australia. Our 3,800 m² workshop runs 264+ staff and ships roughly 300,000 pieces a month. Rings are our largest line — close to half of everything that leaves the building.
We work in three material families: 925 sterling silver, brass with heavy plating, and 316L stainless steel. Casting, stone setting, polishing and plating all happen in-house, which means one factory owns the tolerance from CAD file to finished piece. There is no handoff to a trading company between the wax room and the plating line.
If you are sourcing rings for the first time, the sections below show what we actually run in production, the specification range we hold to, and the six ring constructions our benches are set up for. If you already have a tech pack or a sample, send it and we will quote against it within one working day.
Every style below can be re-produced in your material, plating and stone combination. Colours are indicative — we match against Pantone numbers or a physical sample you send us.
Each construction has its own mould library, setting technique and failure mode. Knowing which one you are ordering is the difference between a ring that survives a season and one that comes back as a return.
Four-prong, six-prong and bezel-set solitaires from 0.5 ct to 3 ct equivalent. Higher-value stones get their seat cut by hand; pavé shoulders are wax-set so the melee sits flush and stays tight through polishing. Split shank, cathedral and peg-head settings are all in current rotation.
Round, oval, pear, emerald and marquise halos with 1.0–2.5 mm melee. Halo rings are the construction most likely to lose stones in transit, so we over-set the inner ring and inspect every piece on a light table before it goes to plating.
Graduated three-stone layouts, baguette side stones, channel-set shoulders and shared-prong bands. Channel work is milled on a CNC to hold a consistent 0.02 mm seat depth, which is what stops the stones from rocking after the final polish.
Flat-top and cushion-top signets from 8×8 mm to 14×12 mm, with laser engraving, black onyx inlay, enamel or hand-carved crests. Men’s rings run heavier — 8 g to 16 g in silver — on a wider shank so the ring does not spin on the finger.
2 mm to 4 mm bands, plain, half-eternity and full-eternity. Full-eternity rings are set before final sizing because the pattern has to stay continuous; we do not size an eternity band after the stones go in.
Oversized centre stones, multi-stone clusters and free-form organic designs. These run in brass or silver depending on target retail price, and we can build a sample in 7 days when you need to test a concept before committing to tooling.
What we hold in normal production. Tighter numbers are possible — tell us the target and we confirm before quoting.
| Item | Standard range we produce |
|---|---|
| Material | 925 sterling silver (92.5% Ag) · brass H62/H65 · copper alloy · 316L stainless steel |
| Main stone | Cubic zirconia AAA–AAAA · nano stone · synthetic spinel · glass crystal · natural gemstone on request |
| Stone size | 1.0 mm – 12 mm; melee supplied in 0.25 mm increments |
| Plating | Rhodium · 18K gold · 14K gold · rose gold · black rhodium · antique silver · two-tone |
| Plating thickness | 0.03–0.05 μm standard · 0.10 μm heavy · up to 0.50 μm on premium lines |
| Ring size | US 4–13 / EU 47–70; half and quarter sizes on request |
| Weight | 1.2 g (thin stacking band) – 16 g (heavy men’s signet) |
| Setting | Prong · bezel · pavé · channel · invisible · wax-set · glue-set on fashion lines |
| Finish | High polish · matte · brushed · sandblast · hammered · oxidised · enamel |
| Stamping | “925” / “S925” inside shank by laser or punch; custom brand mark and size stamp available |
| MOQ | 50 pcs per style on stock designs · 100–200 pcs where new tooling is required |
| Sample lead time | 7–10 days on an existing mould · 12–15 days with new CAD and mould |
| Bulk lead time | 15–25 days after sample approval, depending on plating and setting load |
| Packing | OPP bag · velvet pouch · gift box · custom logo box · Amazon FBA labels |
| Compliance | Nickel release EN 1811 · lead and cadmium free (California Prop 65) · SGS or BV report on request |
Figures above are the range we run weekly, not a best-case laboratory number. If your target market needs a heavier plating or a stricter nickel limit, say so at enquiry stage — it changes the BOM.
Five stages, one contact person, no handoff to a trading company in the middle.
Send a photo, sketch, CAD file or a physical sample. We confirm material, stone, plating and target quantity within one working day.
You get a costed BOM, not one number. For custom work we return a 3D model and a 2D dimensioned drawing for approval, usually in 48 hours.
Wax print, cast, set and plate. 7–10 days on an existing mould, 12–15 days when a new mould is cut. Sample cost is credited against the bulk order.
Casting, setting, polishing and plating run in sequence with an in-process check after each stage. You get photo updates at roughly 30% and 70% completion.
AQL 2.5 final inspection, then export cartons with your label. DHL, FedEx, UPS or sea freight; FOB Guangzhou or door to door.
Photo, sketch, CAD file or a competitor sample — we quote within one working day and tell you the real MOQ before you commit.
