Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along the finger with quiet drama. This semi-set halo engagement ring in 18K rose gold offers a delicate balance of architectural grace and everyday ease.

Crafted in Williamsburg, the rose gold band is polished to a soft sheen, designed with a low-profile setting that nestles close to the finger for comfort and durability. The halo setting frames the marquise center stone—measuring 10 by 5 millimeters—with a subtle circle of pavé diamonds, enhancing brilliance without adding bulk. Each element is meticulously finished and inspected in-studio to ensure a seamless fit and lasting wearability.

Choosing a lab-grown diamond aligns with a commitment to ethical jewelry, reducing environmental impact while delivering exceptional clarity and sparkle.

The slender band and low profile make this ring ideal for those who prefer a refined silhouette that layers effortlessly with wedding bands or stackable rings. Its shape elongates the hand, flattering a range of finger sizes and styles.

Should you need resizing or customization, our Brooklyn studio offers attentive adjustments with care and precision.

Explore this semi-set halo marquise ring in person at our Williamsburg studio or begin your custom design journey online—crafted for daily life, made with intention.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a modern design ethos rooted in New York City.

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.