Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, confident sparkle that draws the eye along the hand’s natural line. This semi-set engagement ring foundation in warm 14K yellow gold frames a 10 x 5 mm marquise center with delicate accent settings, designed to highlight the stone’s tapered drama without overwhelming its refined geometry.

Each band is hand-finished in our Williamsburg studio, polished to a smooth comfort fit that sits low against the finger for everyday ease. The accent settings are crafted to balance modern minimalism with structural clarity, ensuring the ring complements both solo wear and stacking with other bands.

Our lab-grown diamonds offer the same optical brilliance and precise cut as mined stones, with a lighter environmental footprint and traceable origins. This ring’s design suits those who appreciate architectural elegance paired with subtle warmth, ideal for hands that favor elongated shapes and a sleek profile.

Resizing is available to ensure a perfect fit, and the semi-set allows you to select a marquise center diamond that matches your personal clarity and color preferences. Lead times vary slightly depending on customization but are communicated clearly throughout the process.

Explore this foundation in person at our Williamsburg studio or begin your custom design journey online—crafted for daily life, made with Brooklyn care.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a modern design ethos rooted in New York City.

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.

Finished for daily wear — a low-profile silhouette and polished edges help minimize snagging.