Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, dramatic shadow across the hand. This semi-set engagement ring invites you to select a center stone that balances bold geometry with refined elegance.

Crafted from warm 10K yellow gold, the band is shaped and finished in our Williamsburg studio with a subtle artisan touch—smooth edges and a gentle taper ensure comfort for daily wear. The accent settings frame the marquise with delicate precision, designed to enhance light play without overwhelming the stone’s signature pointed ends.

Each ring is thoughtfully made with lab-grown diamonds, reflecting a commitment to sustainable luxury without compromise on clarity or brilliance.

The low-profile mounting suits those who favor understated sophistication, while the narrow band complements slender fingers or pairs gracefully with a wedding band. Its balanced proportions make it ideal for stacking or wearing solo with ease.

Should you wish to adjust sizing, our Brooklyn studio offers expert resizing to maintain the ring’s integrity and comfort.

Explore this semi-set marquise engagement ring in person at our Williamsburg workshop or begin your custom design journey online—crafted for life’s intimate moments.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship meets expert design in every piece.

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.