Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of the marquise diamond, casting a slender, dramatic sparkle across the hand. This semi-set three-stone engagement ring invites you to select a center stone measuring 8 by 4 millimeters, its tapered shape lending a graceful elongation to the finger.

Crafted in warm 18K yellow gold, the mounting features a delicate yet sturdy setting designed to cradle your chosen marquise with precision. The side stones frame the center with balanced symmetry, their artisan-finished prongs polished to a soft sheen that complements daily wear. The band’s subtle curvature and moderate width ensure a comfortable fit, ideal for stacking or solo elegance.

Each ring is thoughtfully assembled in our Williamsburg studio, where sustainable practices guide the selection of lab-grown diamonds—offering clarity and brilliance without compromise. This ethical approach aligns with a modern commitment to responsible luxury.

Designed for those who appreciate refined craftsmanship and a low-profile setting, this ring suits slender to medium finger shapes, enhancing natural hand lines without overwhelming. Its versatile silhouette pairs effortlessly with wedding bands or other stackable pieces.

Should you need resizing or wish to explore stone options, our Brooklyn studio offers personalized consultations to tailor your ring with care and expertise.

Visit us in Williamsburg or begin your custom design journey online—experience the quiet confidence of a ring made for everyday moments and lifelong stories.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and local artistry to create pieces that resonate beyond the moment.

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.