Manufacturer Wholesale HPHT Lab Grown Diamonds
Better Star ranks among the world’s top HPHT lab grown diamond manufacturers, delivering high-purity, vividly colored stones with in-house professional cutting & polishing for unbeatable quality and pricing.
Lab-grown HPHT diamonds replicate the identical chemical, optical and physical features of natural diamonds via high-pressure high-temperature synthesis, free from mining damage and ethical risks. As one of the world’s most vital HPHT lab diamond producers and bulk wholesale suppliers, Better Star holds core advantages in production capacity, product diversity, quality and pricing.


We boast a stable monthly output of 200,000 carats of HPHT loose diamonds, covering 0.3–25 carats with full ranges of shapes, colors and clarity grades—our complete product portfolio caters to all jewelry wholesale demands. All rough stones grow with superior purity and consistent pure color; supported by our self-owned professional cutting and polishing workshops, every finished diamond is strictly graded against global 4C standards with stable premium quality.
With full vertical industrial control from crystal synthesis to fine polishing, we eliminate intermediate costs and deliver factory-direct competitive pricing. We provide steady bulk supply, full certification support and customized OEM solutions for jewelers, distributors and jewelry brands worldwide, acting as your reliable long-term HPHT lab diamond wholesale partner.
- HPHT Lab Diamonds
- IGI & GIA Certification
- Strict 4C Standards
- Full Grade Selections
| Type | HPHT | Carat | 0.3 - 25 |
| 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 | Untreated |
HPHT Lab Diamonds Key Features
Exceptional Diamond Brilliance
Carefully selected hpht diamonds feature excellent cut for max light return & sparkle
Premium Color & Clarity
Available in D–F color and VVS clarity grades to meet fine jewelry standards.
Customizable Shapes
Beyond mainstream diamond cuts, we offer custom diamond shapes.
Bulk Lab Diamond Customization
Bulk customization of loose hpht diamonds in varied colors, cuts, carat & certifications.
About Better Star
Lab Grown Diamond & Jewelry Manufacturer
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.
- CVD & HPHT Lab Diamond
- Cut & Polish · IGI & GIA
- Master Jewellery Artisans
- QC & Comprehensive Inspection
- Bespoke Packaging & Fast Dispatch
- Ultimate Cost Performance
Let's Connect
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Email Gwyneth@betterstar.net
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Whatsapp 8615138918636
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Phone +86 15138918636
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Address Zhengshang International Plaza B-1605, ZhengZhou City, Henan Province, China