Rings
Solitaire, halo, three-stone, eternity and pavé bands. Custom center-stone size, shank width and finger sizes.
Custom Manufacturing · OEM / ODM
Custom lab-grown diamond jewelry, made to your design
HST is a manufacturer of lab-grown diamond jewelry. We produce rings, earrings, necklaces and bracelets set in 14K/18K gold — from your sketch, reference photo or CAD file — and take orders from 1 piece per style, with different styles welcome in one order. Lab-grown loose diamonds are available as a supporting supply for your settings.
Who we work with
We manufacture for B2B buyers who resell or retail finished jewelry under their own name.
Jewelry brands
Develop your own collection: we work from your design files or adapt our existing styles to your brand's specifications, with consistent quality across repeat orders.
Wholesalers & distributors
Replenish or extend your catalog with made-to-order pieces in the metal colors, diamond sizes and price points your market asks for.
Independent designers
Turn a single design into a finished piece — we manufacture from 1 piece per style, so you can test a design before scaling it.
What we make
Four finished-jewelry categories, all set with lab-grown diamonds and made in 14K/18K gold (yellow, white, rose) or platinum. Every style below is a real HST production reference and can be customized.
Earrings
Studs, drops, hoops and huggies. Matched pairs by color and clarity; push-back or screw-back options.
Necklaces
Pendant, tennis, station and choker styles. Custom chain length, total diamond weight and clasp type.
Bracelets
Tennis, bangle, cuff and slider designs. Custom length, diamond layout and secure clasps.
Customization options
- Metal: 14K or 18K gold (yellow, white or rose), or platinum
- Diamonds: lab-grown, round and fancy cuts (oval, emerald, pear, marquise and more); carat, color and clarity to your specification
- Setting style: prong, bezel, pavé, channel, halo — adapted to your design
- Sizing: finger sizes, chain lengths and bracelet lengths per your market
- Branding & finish: engraving and logo branding available; branded packaging supported — minimum order quantity and cost confirmed at quotation
- Design source: from sketch, reference photo or your CAD file
From your idea to a finished order
A clear five-step process. You approve the design and physical sample before mass production.
Inquiry & requirements
Send your design, reference or target spec. We confirm feasibility, options and a quotation.
Design & CAD
Send a sketch or reference photo — we prepare the CAD drawing for you at no cost, usually within 2–3 working days. You review and approve the 3D model before anything is made.
Sampling
A sample is required before mass production — sampling usually takes 7–12 business days, starting once both the deposit has been received and the drawings have been approved. Sample charges cover the gold, lab-grown diamonds and labor; the sample fee is refundable on your first production order.
Production & QC
Model making, casting, bench work, stone setting and quality checks are done in-house; electroplating is completed by our partner facility. Production lead time depends on quantity and design and is confirmed at quotation. Lead times are counted from deposit payment and drawing approval.
Packing & shipping
Goods are shipped by DHL, FedEx, your forwarder or a carrier you specify. Shipping terms and freight arrangements are confirmed at quotation. Payment is by bank transfer (T/T): 30%–50% deposit, balance before shipment — the exact ratio is confirmed at quotation.
What to include in your inquiry
The more specific your brief, the faster and more accurate our quotation. At minimum we need items 1–3; the rest help us match your target price.
- 1. Design source — sketch, reference photo, or CAD file (STL/3DM)
- 2. Category & quantity — which product type and how many pieces per style
- 3. Metal — 14K or 18K, and color (yellow / white / rose), or platinum
- 4. Diamond spec — shape, total carat weight, color and clarity grade
- 5. Sizes / lengths — ring sizes, chain or bracelet lengths
- 6. Target market & price point — helps us propose the right spec
Diamond certificates
IGI or GIA reports are available for the lab-grown loose diamonds set into your jewelry, for stones of 1.00ct and above, with the certificate cost included in the quotation. Certificates cover the diamonds themselves — not the finished piece or the manufacturing facility. QC documentation can be provided on request, and customer-designated third-party inspection can be discussed for your order.
Ready to start?
Send your design and quantity — we reply with feasibility and a quotation.
Request a manufacturing quoteSend your design and quantity — we reply with feasibility and a quotation.
WhatsApp+852 53983437
Emailinfo@hstjewelry.com
Reply timeWithin 24 hours
Design filesSketch, photo or CAD (STL/3DM) accepted