Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated curves of this marquise diamond, its tapered points drawing the eye along a delicate halo of pavé-set stones. Crafted in cool platinum, the ring balances bold geometry with a refined silhouette, the halo setting amplifying the center’s fiery brilliance without adding bulk.

Each facet of the 8 x 4 mm marquise is precisely cut to emphasize its signature tapered drama, a shape that visually elongates the finger with architectural grace. The platinum band is hand-finished to a smooth comfort fit, designed for daily wear with a low-profile setting that slips easily beneath gloves or sleeves.

Our commitment to sustainability shines through the lab-grown diamond’s clarity and ethical origin, offering a conscious alternative without compromise on sparkle or character.

This ring suits those who appreciate sculptural elegance and a statement piece that remains wearable—ideal for stacking with slender bands or worn solo as a striking symbol of intention.

Resizing is available to ensure a precise fit, with careful inspection at every stage to maintain the integrity of the halo and prong settings.

Visit our Williamsburg studio to experience this marquise halo in person or begin your custom design journey online, where expert guidance meets Brooklyn craftsmanship.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert gemological knowledge with ethical craftsmanship rooted in New York City’s artisan community.

See how your design comes to life with our Ring Design Online, or start a truly custom piece from scratch in our Williamsburg studio.

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