Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a delicate shadow that dances with every movement. This three-stone semi-set engagement ring invites you to imagine the center stone—a 6 x 3 mm marquise—nestled between two complementary side gems, each enhancing its tapered drama.

Crafted from warm 18K rose gold, the band is shaped and finished in our Williamsburg studio with a subtle comfort fit that rests lightly on the finger. The low-profile setting ensures daily wearability without catching, while the artisan hand-polished surface reveals the metal’s soft glow against the skin.

Each lab-grown diamond offers clarity and brilliance with a fraction of the environmental impact, reflecting our commitment to ethical jewelry without compromise.

Designed for those who appreciate refined geometry and understated elegance, this ring suits slender to medium finger shapes and layers beautifully with stackable bands or wedding bands of varying widths.

Should you wish to adjust the fit, resizing is available through our in-house experts, ensuring the ring feels as personal as the story it tells.

Visit our Williamsburg studio to explore this semi-set design in person or begin your custom journey online—crafted for your life, your love, your hand.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship meets ethical values in every piece we create.

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.