Wholesale CVD Lab Grown Diamonds — IGI Certified
Factory-direct CVD lab grown diamonds from our Surat manufacturing facility, with live inventory, transparent wholesale pricing, and trade terms for retailers, manufacturers, and jewelry businesses worldwide.
- Full Shape Range
- IGI Certified
- Live Wholesale Pricing
- Bulk & Custom Sourcing
Factory-Direct CVD Lab Grown Diamonds for B2B Buyers
CVD (Chemical Vapor Deposition) diamonds are grown by depositing carbon layer by layer inside a controlled chamber. The finished diamond has the same crystal structure, hardness, and optical properties as a diamond formed in the earth, while its laboratory-grown origin is identified on its grading report. For B2B buyers, the key advantage of CVD is process control and consistency, helping manufacturers and retailers source reliable quality across different carat weights, shapes, and specifications.
OCS Diamond has manufactured CVD lab grown diamonds at our Surat facility since 2018, supplying retailers, wholesalers, and jewelry designers across India, the USA, the UK, Europe, the Middle East, and Australia. As GJEPC and Surat Diamond Bourse members, we carry out internal quality checks before stones are listed, giving buyers an additional layer of review beyond the grading report.
Our CVD inventory ranges from 1mm melee through 10-carat-plus stones, covering a broad selection of white colors and clarity grades. Inventory is refreshed every 2 days. Whether you are sourcing smaller stones for pavé settings or larger stones for bridal and statement jewelry, each eligible stone is supplied with its IGI certificate and video. For larger or first-time orders, our team can also walk you through the actual stone during a live video call before payment.
What Determines CVD Diamond Pricing
Several factors influence the price of a CVD diamond, and understanding how they work together helps you compare stones beyond carat weight alone. Carat weight, clarity, color, cut quality, and shape can all affect the final price.
Carat weight matters, but changes in clarity and color can also create significant price differences between otherwise similar stones. Cut, polish, and symmetry affect both pricing and how the diamond performs under light, which is particularly important for solitaire and center stones. Shape also plays a role — round brilliant diamonds generally command a premium over some fancy shapes because of cutting yield and market demand.
If you’re buying for a specific price point rather than a specific specification, tell our team your target and we’ll show you where the best value sits in current stock. In some cases, adjusting color, clarity, carat weight, or shape can give you stronger visual value within the same budget.
Available Specifications
| Specification | Details |
|---|---|
| Growth Type | CVD (Chemical Vapor Deposition) |
| Carat Range | 1mm to 10 carats+ |
| Color | White (D–J / DEF–GHI) |
| Clarity | up to VS2, with occasional SI1 availability |
| Cut/Polish/Symmetry | Excellent to Very Good across all three grades |
| Shapes Available | Round, Oval, Cushion, Emerald, Pear, Princess, Marquise, Radiant, Asscher, Heart, Baguette, Portuguese, and more |
| Certification | IGI |
Live Fancy Yellow Lab-Grown Inventory
Our live inventory includes a wide range of Fancy Vivid, Fancy Intense, and Fancy Yellow lab grown diamonds across shapes and sizes.
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Where CVD Diamonds Are Most Commonly Used
Round and oval CVD diamonds in G–H color and VS2 clarity are commonly selected for solitaire engagement rings, offering a practical balance of appearance, consistency, and value.
Smaller CVD melee under 0.10ct are widely used in pavé and halo settings, where matching size, color, and quality across a larger quantity is especially important.
Larger CVD diamonds from 1ct and above are often sourced for statement jewelry, bridal collections, and designs where the center stone plays the primary visual role.
Why Buy CVD Diamonds Direct From OCS Diamond
Every stone goes through our internal quality-control process before it is listed. Buyers can review the stone’s specifications, IGI grading report, and available video before making a purchasing decision.
Our manufacturing and QC process is designed to help retailers and manufacturers source consistent stones across sizes, shapes, and specifications. For repeat orders or collection production, our team can help identify closely matched stones where available.
Each listed stone includes its available grading and specification details, with IGI certification and video provided for applicable inventory. For larger or first-time purchases, buyers can also request a live video inspection of the actual stone before payment.
Whether you need a few stones for retail replenishment, matched quantities for jewelry production, or a larger custom order, our team can work around your required carat, shape, color, clarity, and budget.
CVD vs HPHT — Which Should You Stock?
Both CVD and HPHT are established methods for producing lab grown diamonds. The finished stones have the same fundamental diamond crystal structure, hardness, and optical properties, while the growth process differs.
CVD can be a strong choice for retailers and manufacturers who need a broad range of sizes and shapes, particularly when consistent sourcing across repeat orders is important. HPHT also has an important role in the lab grown diamond supply chain and may be preferable for certain specifications or available inventory.
For most B2B buyers, the better choice depends on the required carat weight, shape, color, clarity, quantity, and target price rather than simply choosing one growth method over the other.
If you are unsure which option fits your order, share your target specifications with our team and we can recommend suitable stones from current inventory.
Frequently Asked Questions
Yes. CVD lab grown diamonds can be sold through jewelry businesses and presented for appraisal, with their laboratory-grown origin documented on the IGI grading report. Resale value depends on factors such as the stone’s specifications, current market conditions, and the buyer’s intended use.
Yes. Our certified CVD lab grown diamonds are supplied with IGI grading reports where applicable. The report documents the stone’s laboratory-grown origin along with its graded specifications, providing documentation that retailers, manufacturers, and appraisers can reference.
Our standard minimum order is 5 carats. First-time buyers can request a smaller sample order to evaluate quality before committing to bulk.
Yes — if a specific combination isn’t currently in stock, our custom manufacturing process can produce it, typically within 10 business days.
Every 2 days – the table you’re viewing reflects current available stock, not a static or outdated catalog.
Access Wholesale White CVD Diamonds
Partner with Ocean Star Diamonds for a reliable, ethical, and scalable supply of white CVD lab grown diamonds. Built for retailers and manufacturers sourcing at scale.