Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, confident silhouette across the hand. This three-stone semi-set ring features a 12 x 6 mm marquise center, poised to frame your chosen stones with architectural clarity.

Crafted from warm 14K yellow gold, the band is shaped for comfort and daily wear, its smooth finish balancing modern minimalism with structural precision. The semi-set design invites you to select center stones that reflect your personal story, while the side settings await their complementary sparkle.

Each lab-grown diamond offers exceptional clarity and brilliance, created with a commitment to sustainability and ethical sourcing that quietly honors Brooklyn’s conscientious spirit.

The low-profile setting ensures this ring sits gracefully beneath gloves or alongside stackable bands, ideal for those who appreciate refined geometry without excess height. Its elongated marquise shape naturally elongates the finger, lending an elegant yet assertive presence.

Should you need adjustments, resizing is handled expertly in-studio to maintain the ring’s clean lines and comfort fit.

Explore this semi-set marquise engagement ring in our Williamsburg studio or begin your custom design journey online, where thoughtful craftsmanship meets your vision.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending ethical craftsmanship with modern design sensibility rooted in New York City’s creative heart.

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.