Symmetrical double-point marquise cut stretches hand lines with fiery sparkle in assorted fancy tones. We supply loose stones, finished jewelry and all-round personalized custom crafting service.
Marquise cut lab grown diamonds boast a unique symmetrical oval silhouette with two sharp pointed ends, creating an ultra-slender visual effect unlike heart’s romantic curves or emerald’s rigid rectangular lines. Produced by HPHT and CVD growth methods, these gems come in white, golden yellow, soft pink and cool blue fancy colors to fit diverse luxury styling demands.
Polished smooth edges around the main body reduce skin irritation and fabric snags, delivering lightweight, all-day comfortable wear. Its extended outline remarkably slenderizes fingers, making it ideal for glamorous engagement rings, long drop earrings and minimalist pendant necklaces for banquets and dating.


We provide full-size loose marquise lab diamonds, complete matching jewelry sets and one-stop bespoke customization. Highly favored by clients pursuing distinctive elegant silhouettes, these stones serve as premium raw materials for romantic proposal pieces, anniversary keepsakes and exclusive customized high-end fine 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 | Marquise 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 based in Shuibei, Shenzhen — China’s premier jewelry manufacturing district. We grow the diamonds in our own CVD and HPHT laboratories, cut and certify them in-house, cast and set the jewelry in our own factory, and ship directly to your door in your branded packaging.
When you order from us, you pay factory cost — not distributor cost, not trading company cost. Every dollar that would have gone to intermediaries stays in your margin or product quality. We serve brands in 30+ countries, from boutique jewelers to major retail chains.
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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