Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along the finger with subtle drama. This semi-set solitaire ring features a 9 x 4.5 mm marquise center stone, ready to be paired with your choice of lab-grown diamond, nestled in a warm 10K rose gold band.

The low-profile setting ensures the stone sits close to the hand, minimizing snagging while offering a sleek, modern line. The band’s gentle curve and smooth finish provide a comfortable fit for daily wear, crafted with precision in our Williamsburg studio where each piece undergoes meticulous inspection.

Choosing a lab-grown diamond here reflects a commitment to ethical jewelry—minimizing environmental impact without compromising on brilliance or clarity.

This solitaire suits those who appreciate architectural elegance with a hint of vintage flair, elongating the finger and pairing effortlessly with stackable bands or wedding rings. Its semi-set nature invites personalization, allowing you to select a stone that resonates with your vision.

Should you need resizing or guidance on selecting the perfect diamond, our Brooklyn studio offers expert advice and a pressure-free experience.

Explore this marquise solitaire semi-set in person or begin your custom design journey online—crafted for life’s most meaningful moments.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a distinctly local touch.

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.