Custom Lab Grown Diamond Ring Manufacturing – OEM/ODM Factory

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Custom Lab Grown Diamond Ring Manufacturing – OEM/ODM

We are a lab grown diamond jewelry factory in Zhengzhou, China, offering full OEM/ODM service: your design, your brand, our production. From CAD and 3D printing to casting, stone setting, polishing, engraving and branded packaging — one factory does it all.

Brands and retailers work with us to build exclusive collections without owning production. We handle prototypes, small-batch launches and volume reorders.

Services CAD design, 3D printing, casting, setting, polishing, plating, laser engraving, packaging
Metals 14K, 18K, 10K, 9K gold · Platinum · 925 silver
Stones Lab grown diamonds (white & colored), lab gemstones
Certification IGI / GIA / HRD on request
MOQ 10 pieces per design (sample pieces first)
Lead time Prototype 7–10 days · Production 15–25 days
Branding Your logo engraving, custom stamp, branded boxes, warranty cards

Your Brand, Our Factory

Send us your sketch or reference photo and we will return a CAD model, quotation and timeline within 3 working days.

Request Wholesale Quote — submit your details through our contact form and we will reply within one working day.

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Wholesale Frequently Asked Questions

What is your minimum order quantity (MOQ)?

Sample orders start from 1 piece so you can check quality before committing. Bulk orders start from 10 pieces per style — the exact MOQ is listed in the specification table above.

Can I order a sample before bulk?

Yes. We offer samples at a small fee which is fully deductible from your first bulk order. Samples ship by express courier in 3–7 days.

What is your production lead time?

In-stock styles ship in 3–7 days. Custom and OEM production takes 15–25 days after sample confirmation, depending on quantity and complexity.

Do you provide certificates for the diamonds?

Yes. IGI, GIA or HRD certificates are available on request. Loose stones can be certified before setting, and finished pieces include our quality inspection report.

Can I customize a design or make my own (OEM/ODM)?

Absolutely. Send us your sketch, photo or reference design and we will provide CAD, quotation and timeline within 3 working days. We handle CAD, casting, setting, engraving and branded packaging.

What payment methods do you accept?

We accept bank transfer (T/T), PayPal and major credit cards. Payment terms are confirmed in your quotation; production starts after deposit.

How do you ship and how much does shipping cost?

We ship worldwide via DHL, FedEx, UPS and EMS with full insurance. Shipping cost depends on destination and order value and is quoted together with the product price.

Do you offer wholesale pricing for larger orders?

Yes — pricing is tiered by quantity. The more you order per style, the lower the per-piece price. Request a quote with your target quantity and we will send our best wholesale rate.

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