Square clipped-corner step-cut stones deliver iconic hall-of-mirrors depth, supplied in full fancy hues. We offer bare gems, finished jewelry and bespoke customization for vintage bridal & luxury collections.
Asscher cut lab grown diamonds feature a unique square silhouette with four cropped corners and orderly concentric step facets, generating a stunning hall-of-mirrors optical depth that differs sharply from pear cut’s elongated teardrop sparkle. Produced via mature HPHT and CVD technology, they cover white, yellow, pink and blue fancy colors to match diverse vintage Art Deco styling demands.
The clipped corners eliminate fragile sharp tips, boosting durability for daily wear without easy chipping. Geometric symmetrical lines create a poised, sophisticated wearing effect, ideal for vintage engagement rings, square stud earrings and geometric pendants.


We supply full-size loose Asscher lab diamonds, finished matching jewelry sets and one-stop personalized custom services. Favored by clients chasing retro architectural aesthetics, these stones stand out as exclusive alternatives to mainstream brilliant and pear-cut gems for high-end bespoke fine jewelry creation.
| Type | HPHT & CVD | Carat | 1ct, 1.5ct, 2ct, 5ct, 10ct, etc. |
| Color | D, E, F, G, H, I | Clarity | VVS, VS, SL |
| Cut | ID, 3EX | Certification | IGI / GIA / NGTC |
| Shape | Assher 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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