Wholesale Rough Lab Grown Diamonds Direct From Source
Factory source for rough lab grown diamonds. Comprehensive supply of high-quality HPHT, CVD and fancy colored rough crystals for global buyers. Request wholesale pricelist.
Why Source Rough Lab Grown Diamonds From Us?
Our Core Technology Portfolios

HPHT Rough Diamonds
Our HPHT (High Pressure High Temperature) rough diamonds mimic the natural creation process of the earth under extreme pressure and temperature. Characterized by their distinct cubo-octahedral shape, our HPHT crystals offer excellent yield rates for round or fancy cuts.
CVD Rough Diamonds
Grown via Chemical Vapor Deposition, our CVD rough diamond plates are the preferred choice for cutting large carat sizes and fancy shapes (Emerald, Radiant, Oval). We ensure zero or minimal strain and graining.


Colored Rough Lab Grown Diamonds
Capitalize on the high-end fashion jewelry market. By injecting exact, micro-calibrated doses of gas dopants (like ultra-purified Boron for deep blues) or applying post-growth high-energy electron beam irradiation (for vivid pinks), we deliver consistent, repeatable fancy color saturation across industrial wholesale quantities.
Rough Lab Diamonds Specifications Table
| Category | Growth Method | Typical Size Range | Main Colors | Action |
|---|---|---|---|---|
| HPHT Rough | High Pressure High Temperature | 0.01 ct – 20.0+ ct | D – F (Mainly Colorless) | Send Inquiry |
| CVD Rough | Chemical Vapor Deposition | 2.0 ct – 30.0+ ct | D – J (High Clarity) | Send Inquiry |
| Colored Rough | HPHT / CVD Post-treatment | 0.01 ct – 15.0+ ct | Yellow, Blue, Pink, Green | Send Inquiry |
FAQ About Wholesale Rough Lab Grown Diamonds Direct From Source
Do lab-grown rough diamonds require Kimberley Process Certificates for international border entry?
No. The Kimberley Process Certification Scheme applies exclusively to natural rough diamonds to prevent conflict sourcing. International lab-grown rough shipments are processed cleanly using standard global Harmonized System customs declarations. We provide complete commercial invoices, packing lists, and origin declarations to ensure smooth customs processing.
What is the main cause of cracking during laser cutting, and how do you prevent it?
Cracking during laser coring is primarily caused by internal crystal stress, which often builds up during rapid, low-tech CVD growth. We prevent this by keeping our plasma density completely stable and growing our crystals at controlled, slower rates. This limits internal birefringence stress, allowing your factory technicians to core, saw, and block our rough stones with confidence.
How do you control nitrogen and boron impurities from causing color shifts in colorless lines?
Color contamination is avoided by utilizing proprietary vacuum sealing technology and ultra-pure carbon raw sources. In our HPHT systems, customized nitrogen scavengers are added directly into the reaction capsule, ensuring that the finished crystals maintain a pure Type IIa atomic profile with no unappealing yellow tinting.
What payment structures do you accept for international bulk supply agreements?
Standard spot purchases are settled via 100% Telegraphic Transfer (T/T) bank wire prior to secure courier release.
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