CVD Lab Diamonds
As one of China’s leading CVD lab grown diamond manufacturers, Better Star delivers consistent quality, highly competitive factory pricing and abundant ready stock for global wholesale buyers.
As one of China’s leading CVD lab grown diamond manufacturers, Better Star delivers consistent quality, highly competitive factory pricing and abundant ready stock for global wholesale buyers.
CVD lab grown diamonds are produced via Chemical Vapor Deposition technology, forming pure Type IIA crystals layer by layer. Chemically, optically and physically identical to natural diamonds, they feature exceptional clarity and can grow into larger carat sizes, making them a sustainable, cost-effective alternative to mined stones.
As one of the world’s most vital CVD lab diamond manufacturers and global wholesale suppliers, Better Star delivers unmatched comprehensive product portfolios, premium consistent quality and factory-direct competitive pricing for jewelry distributors and brands worldwide. Our stable monthly production capacity hits 100,000 carats of polished CVD loose diamonds, covering all common shapes, color grades and clarities from small melee to large custom-sized stones.
Supported by our integrated cutting and polishing workshops, every diamond undergoes strict 4C grading inspection, with full IGI/GIA certification available. We implement full vertical industrial control from crystal growth to finished stones, eliminating intermediate markups and securing steady bulk inventory. We offer flexible OEM customization, transparent treatment disclosure for post-growth HPHT color correction, and reliable long-term supply solutions to partners across every continent.
| Type | CVD Lab Diamonds | Carat | 0.3 - 23 |
| Color | D, E, F, G, H, I | Clarity | FL/IF, VVS, VS |
| Cut | ID, 3EX | Certification | IGI / GIA / NGTC |
| Shape | Round & Fancy Shape | Fancy Color | Pink, Blue, Orange, Yellow, etc. |
| Polish | EX, VG, GD | Symmetry | EX, VG, GD |
| Fluorescence | N, F, M, S, VS | Color Treated | Treated / Untreated |
Key Features
Carefully selected cvd diamonds feature excellent cut for max light return & sparkle
Available in D–F color and VVS clarity grades to meet fine jewelry standards.
Beyond mainstream diamond cuts, we offer custom diamond shapes.
Bulk customization of loose cvd diamonds in varied colors, cuts, carat & certifications.
Better Star is a vertically‑integrated diamond and jewelry manufacturer headquartered in Zhengzhou. We grow lab‑grown diamonds at our in‑house CVD and HPHT facilities, perform cutting and certification internally, and complete jewelry casting and stone setting within our own workshop. We ship orders directly to you in custom branded packaging.
Thanks to our complete industry chain, Better Star have a significant advantage in the markets for rough lab diamonds, loose diamonds, and finished jewelry. Currently, we serve jewelers and jewelry brands in over 30 countries worldwide, providing OEM and ODM services for lab diamond jewelry, as well as supporting custom lab grown diamond jewelry.
Explore Our Products
Discover lab-grown diamond bracelets, necklaces, rings, earrings, and pendants crafted with certified quality and exceptional brilliance for global jewelry brands and retailers.
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