Cushion Cut Diamonds
Rounded square cushion cut boasts plush rounded facets with gentle glow, available in rich fancy tones. We supply loose stones, finished ornaments and full custom jewelry design services.
Rounded square cushion cut boasts plush rounded facets with gentle glow, available in rich fancy tones. We supply loose stones, finished ornaments and full custom jewelry design services.
Cushion cut lab cultivated diamonds own a signature rounded square frame paired with blended brilliant and step facets, creating soft, velvety light performance unlike the sharp geometry of Asscher or slim teardrop silhouette of pear cuts. Manufactured by HPHT and CVD technologies, they come in white, vivid yellow, romantic pink and cool blue fancy colors to satisfy varied aesthetic preferences.
Smooth curved edges avoid snags and edge chipping, bringing cozy, weightless wearing comfort for all-day use. Their warm luminous glow makes them perfect for vintage engagement rings, cocktail pendants and elegant drop earrings.
Better Star provides full-sized loose cushion lab diamonds, ready-made matching jewelry sets and one-stop personalized customization. Ideal for clients pursuing romantic retro luxury, these gems serve as core materials for custom bridal gifts and high-end daily statement jewelry.
| 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 | Cushion 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 |
Key Features
Carefully selected lab 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 lab 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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