Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a delicate arc of rose gold. This semi-set halo engagement ring offers a refined foundation, ready to showcase a 9 x 4.5 mm marquise stone with architectural grace.

Crafted from warm 18K rose gold, the band is designed with a low-profile setting that nestles close to the finger, balancing presence with everyday comfort. The halo setting frames the center stone subtly, enhancing brilliance without adding bulk, while the smooth finish ensures a gentle feel against the skin.

Each piece is meticulously shaped and inspected in our Williamsburg studio, where precision meets quiet craftsmanship. The choice of a lab-grown diamond aligns with a commitment to ethical jewelry, reducing environmental impact without compromising on clarity or fire.

This ring suits those who appreciate a sculptural yet wearable design—its slim band and low profile make it ideal for stacking or pairing with a wedding band, while the marquise shape visually elongates the hand for an elegant silhouette.

Should you need resizing or prefer a custom stone, our team guides you through a seamless process with attentive care and timely communication.

Explore this semi-set halo marquise ring in person at our Williamsburg studio or begin your custom design journey online, where thoughtful craftsmanship meets modern romance.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending expert design, ethical sourcing, and local artistry into every creation.

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.