Elongated Oval HPHT CVD Lab Grown Diamonds & Jewelry
Smooth rounded oval silhouette balances brilliance and length, offered in rich fancy color options. We provide loose oval gems, finished fine jewelry and full one-stop custom design services.
Oval cut lab cultured diamonds feature an elongated rounded contour without sharp corners, blending the slender visual advantage of marquise and the soft mild glow of cushion cuts, standing out from angular emerald and sentimental heart styles. Manufactured via HPHT and CVD techniques, they cover pure white, warm yellow, delicate pink and icy blue fancy shades to match various aesthetic preferences.
Uniform curved facets produce balanced all-over sparkle, while smooth rounded rims prevent scratches and fabric snags for lightweight, comfortable long-term wear. The extended oval outline visually slims fingers prominently, widely used for classic engagement rings, minimalist pendants and elegant stud earrings.


We supply full-size loose oval lab diamonds, complete matching jewelry sets and full personalized customization. A timeless versatile pick for proposals, daily wear and anniversary gifts, these oval stones are a mainstream premium choice for custom bridal and luxury everyday jewelry.
- CVD & HPHT Lab Diamonds
- IGI & GIA Certification
- Strict 4C Standards
- Full Grade Selections
| Type | HPHT & CVD | Carat | 1ct, 2ct, 3ct, 5ct, 10ct, etc. |
| Color | D, E, F, G, H, I | Clarity | VVS, VS, SL |
| Cut | ID, 3EX | Certification | IGI / GIA / NGTC |
| Shape | Oval Cut | 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 |
Oval Cut Diamonds Key Features
Exceptional Diamond Brilliance
Carefully selected lab 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 lab 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