Lab-Grown Diamond Engagement Ring

Light catches the elongated silhouette of a marquise diamond, its pointed ends drawing the eye along the finger with subtle drama. This semi-set solitaire ring in 18K white gold offers a refined foundation for a 7 x 3.5 mm marquise center, designed to showcase the stone’s distinctive shape without distraction.

Crafted with a low-profile setting, the band sits close to the finger, minimizing snagging while maintaining a sleek, modern line. The polished 18K white gold shank is shaped for comfort, balancing durability with everyday wearability. Each mounting is meticulously finished and inspected in our Williamsburg studio to ensure precision and lasting quality.

Our commitment to ethical jewelry is reflected in the choice of lab-grown diamonds, offering clarity and brilliance with a smaller environmental footprint.

This solitaire mounting suits those who appreciate architectural elegance and prefer a ring that layers effortlessly with wedding bands or stackable styles. Its slim profile and secure prongs make it glove-friendly and ideal for daily life.

Should you wish to resize, our Brooklyn studio provides expert adjustments to maintain the ring’s integrity and comfort.

Explore this semi-set marquise solitaire in person at our Williamsburg studio or begin your custom design journey online—crafted for your life, made in Brooklyn.

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

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.