Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, graceful shadow across the hand. This semi-set engagement ring offers a poised foundation for a 12 x 6 mm marquise center, its narrow silhouette designed to accentuate the stone’s dramatic taper.

Crafted from warm 18K yellow gold, the mounting features a low-profile setting that hugs the finger closely, minimizing snagging while maximizing comfort for everyday wear. Each prong is meticulously shaped and polished in our Williamsburg studio, ensuring the band’s smooth finish complements the diamond’s sharp geometry.

Our commitment to sustainability is reflected in the choice of a lab-grown diamond, offering clarity and brilliance with a lighter environmental footprint.

The slender band suits those who appreciate refined elegance and seek a ring that layers effortlessly with wedding bands or stackable rings. Its subtle height and secure setting make it glove-friendly and ideal for active lifestyles.

Should you need a custom fit, resizing is straightforward and handled with care by our in-house artisans.

Explore this semi-set marquise solitaire in person at our Williamsburg studio or begin your custom design journey online, where expert guidance awaits.

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 deep connection to New York City’s creative spirit.

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.