Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, dramatic silhouette that stretches gracefully across the finger. This semi-set three-stone engagement ring foundation frames a 9 x 4.5 mm marquise center with two side stones, designed to amplify the stone’s tapered drama and vintage allure.

Crafted from 14K yellow gold, the band offers a warm glow that complements the marquise’s fiery brilliance. The setting balances secure prongs with a low-profile design, ensuring daily wearability without catching or discomfort. Each piece is meticulously finished by hand in our Williamsburg studio, where precision meets artisan care in every curve and polish.

Our diamonds are lab-grown, reflecting a commitment to ethical sourcing and environmental mindfulness without compromising on clarity or sparkle.

With its slender shape and three-stone layout, this mounting suits those who appreciate a statement ring that remains elegant and wearable. The band’s moderate width and smooth finish make it comfortable for stacking or solo wear, fitting naturally alongside wedding bands or other fine jewelry.

Resizing is available to ensure a perfect fit, and the semi-set design invites you to select a center stone that resonates personally, with guidance from our Brooklyn studio experts.

Explore this foundation in person at our Williamsburg workshop or begin your custom design journey online—crafted for life’s most meaningful moments.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship and local expertise shape every custom design.

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.