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 halo engagement ring foundation in 18K rose gold offers a warm, modern-minimal frame for a 9 x 4.5 mm center stone of your choosing.

Crafted with precision in Williamsburg, the rose gold band is polished to a soft sheen, its low-profile setting designed for everyday wear without catching. The halo setting’s delicate structure enhances the marquise’s dramatic shape, balancing architectural clarity with subtle warmth.

Each lab-grown diamond selected for this ring carries the promise of ethical sourcing and environmental mindfulness, reflecting a commitment to sustainability without compromise on brilliance or clarity.

Its slender band and modest height make this ring ideal for those who appreciate confident design that fits seamlessly into daily life—comfortable beneath gloves, stackable alongside wedding bands, and flattering on a variety of hand shapes.

Should you need resizing or prefer a custom consultation, our Brooklyn studio welcomes you to explore options with no pressure and full transparency.

Discover the possibilities of this marquise halo semi-set by visiting our Williamsburg studio or designing online. Haejin Jewelry brings expert craftsmanship and ethical clarity to lab-grown diamond engagement rings, rooted in the creative heart of Brooklyn.

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.