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 offers a refined foundation in 18K white gold, crafted to cradle a 10 x 5 mm marquise stone with precision and a low-profile setting that slips comfortably beneath gloves and daily wear.

The band’s smooth finish and balanced weight ensure a secure yet effortless fit, designed in Williamsburg with attention to how the ring moves with your hand. Each curve is polished to a gentle sheen, reflecting the studio’s commitment to craftsmanship that honors both form and function.

Our diamonds are lab-grown, offering a clarity and brilliance that aligns with a sustainable approach to fine jewelry—minimizing environmental impact without compromising on light or life.

Ideal for those who appreciate architectural elegance paired with practical wearability, this mounting suits slender to medium finger shapes and pairs well with stackable bands or a wedding ring of complementary design.

Should you need resizing or prefer a custom consultation, our Brooklyn studio welcomes you to explore options in person or through our online design experience.

Haejin Jewelry stands as a Brooklyn-based atelier specializing in lab-grown diamond engagement rings, where ethical craftsmanship and local expertise converge to create pieces made for everyday grace and enduring 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.