Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of this marquise halo ring, it casts a striking, tapered brilliance that feels both bold and refined. The 10 x 5 mm marquise diamond, set in a precise halo of smaller stones, amplifies its architectural clarity while maintaining a modern-minimal balance.

Crafted entirely in platinum, the band offers a cool, substantial weight with a smooth comfort fit that sits low on the finger, designed for everyday wear without catching. Each facet is meticulously polished in our Williamsburg studio, where the halo setting is carefully inspected to ensure secure prong placement and seamless sparkle.

Our commitment to ethical jewelry shines through the use of a lab-grown diamond, delivering exceptional clarity and fire with a significantly reduced environmental footprint. This ring suits those who appreciate structured elegance and a confident statement piece that layers effortlessly with other bands or stands alone.

Resizing is available to ensure a precise fit, with typical lead times reflecting our handcrafted approach. Whether you visit us in Brooklyn or design online, this marquise halo ring invites a personal connection to craftsmanship and conscious luxury.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship meets modern design sensibility in every piece.

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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Finished for daily wear — a low-profile silhouette and polished edges help minimize snagging.