Lab-Grown Diamond Engagement Ring

When sunlight catches the elongated silhouette of a marquise diamond, it casts a striking, tapered brilliance that draws the eye along the finger’s natural line. This semi-set engagement ring frame, crafted in warm 14K yellow gold, awaits your choice of a 12 x 6 mm marquise center stone, designed to showcase the gem’s distinctive pointed ends and dramatic sparkle.

The band’s low-profile setting ensures the ring sits close to the hand, reducing snagging and enhancing comfort for everyday wear. Meticulously finished in Williamsburg, Brooklyn, the smooth shank balances durability with refined elegance, while subtle accent stones add a quiet shimmer without overwhelming the center.

Each piece embraces lab-grown diamonds for their clarity and ethical provenance, reflecting a commitment to sustainability without compromise on beauty or brilliance.

Ideal for those who appreciate architectural grace paired with practical design, this mounting suits slender to medium finger sizes and layers effortlessly with wedding bands or stackable rings. Its streamlined form fits comfortably under gloves and resists daily wear challenges.

Should you need resizing, our Brooklyn studio offers precise adjustments to ensure a perfect fit without disrupting the ring’s silhouette.

Explore this semi-set marquise engagement ring in person at our Williamsburg studio 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 expert craftsmanship and ethical design converge 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.