Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it draws the eye along its graceful points, offering a subtle drama that feels both refined and distinctive. This semi-set halo engagement ring in warm 18K rose gold frames a 9 x 4.5 mm marquise center, designed to amplify brilliance while maintaining a low profile for everyday comfort.

Crafted with precision in Williamsburg, the band’s smooth finish and secure halo setting balance sparkle with wearability, ensuring the ring sits close to the finger without catching. The rose gold’s gentle blush complements the diamond’s fiery facets, while the semi-set design invites you to select a lab-grown stone that meets your clarity and cut preferences.

Each piece reflects a commitment to ethical jewelry, featuring a sustainably sourced lab-grown diamond option that reduces environmental impact without compromising radiance. The slender band and low-profile halo make this ring ideal for those seeking a statement that layers effortlessly with wedding bands or stacks.

Resizing is straightforward, handled carefully in-studio to preserve the ring’s structural integrity and finish. Whether worn daily or reserved for special moments, its balanced design suits a variety of hand shapes and lifestyles.

Explore this semi-set halo marquise ring in our Williamsburg studio or begin your custom design journey online—where expert guidance meets thoughtful craftsmanship.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces made for life’s most meaningful moments.

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

Explore our Guides & Education and Stories & Lifestyle for diamond education, care tips, and real studio stories.