Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a graceful arc. This semi-set three-stone engagement ring invites your choice of a 10 x 5 mm center stone, framed by two delicate side gems that amplify its sculptural presence.

Crafted in warm 14K rose gold, the band’s subtle sheen contrasts with the cool glow of white gold prongs, a harmonious blend that enhances the diamond’s brilliance. The artisan finish reveals hand-polished surfaces and a low-profile setting designed for everyday wear, balancing elegance with comfort.

Each lab-grown diamond offers clarity and sparkle without compromise, reflecting a commitment to sustainable, ethical jewelry practices rooted in Brooklyn’s creative spirit.

Its slender band and modest height make this ring ideal for those who appreciate refined geometry and a piece that layers effortlessly with wedding bands or stackable rings. The marquise shape’s elongation flatters slender fingers, while the three-stone layout symbolizes past, present, and future.

Should you need resizing or prefer a custom side stone selection, our Brooklyn studio welcomes your questions with a pressure-free approach and expert guidance.

Explore this semi-set marquise ring in person at our Williamsburg workshop or begin your custom design journey online, where craftsmanship meets personal expression.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship and local artistry converge to create meaningful, modern heirlooms.

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.