Lab-Grown Diamond Engagement Ring

Sunlight catches the slender silhouette of a marquise diamond, its tapered points tracing a delicate arc across the finger. This semi-set solitaire invites you to select a 6 x 3 mm lab-grown marquise, known for its dramatic elongation that visually lengthens the hand with a refined, architectural grace.

Crafted in warm 14K rose gold, the mounting is designed with a low-profile setting that nestles close to the skin, minimizing snagging and enhancing everyday comfort. The band’s subtle taper and smooth finish ensure it wears effortlessly alone or stacked alongside other favorites.

Each piece is meticulously finished in our Williamsburg studio, where expert hands polish and inspect every curve to meet exacting standards of balance and durability. The rose gold’s gentle blush complements the marquise’s sharp geometry, creating a quiet tension between softness and precision.

Our commitment to ethical jewelry is reflected in the lab-grown diamond option, offering clarity and brilliance with a reduced environmental footprint.

Ideal for those who appreciate a sleek, modern profile that transitions seamlessly from daily wear to special moments. The semi-set design allows you to choose a center stone that fits your vision, with resizing available to ensure a perfect fit.

Explore this design in person at our Williamsburg studio or begin your custom journey online, where expert guidance awaits to bring your engagement ring to life.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces made for real life and lasting beauty.

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.