Wholesale Loose Lab Grown Diamonds – Round 1ct to 3ct, IGI Certified

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Round Loose Lab Grown Diamonds, Direct from the Factory

We produce and wholesale round brilliant lab grown diamonds from 1ct to 3ct, available in D to F color and VVS to VS clarity, with IGI certification on request. As a lab grown diamond manufacturer in Zhengzhou, China, we control the full process from crystal growth to cutting and polishing, which is why our per-carat prices stay below typical market rates.

Every batch is sorted, graded and laser-inscribed before dispatch. Stones can be supplied loose, matched in sets, or set into your own ring designs by our in-house workshop.

Shape Round brilliant
Carat weight 1ct, 1.5ct, 2ct, 2.5ct, 3ct (custom on request)
Color D, E, F
Clarity VVS1, VVS2, VS1, VS2
Cut Excellent
Certification IGI / GIA / HRD (on request)
Growth method CVD and HPHT
MOQ 1 piece (sample), 10 pieces (bulk)
Lead time 3–7 days in stock, 10–15 days production
Customization Laser inscription, matched pairs, grading on request

Why Buyers Source Round Lab Grown Diamonds from Our Factory

We supply jewelers, wholesalers and online brands with consistent quality stone lots at factory pricing. Request our current per-carat price list for the sizes and grades you need — we reply within one working day.

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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