Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye like whispered promises. This three-stone semi-set engagement ring in 14K yellow gold offers a warm embrace to a 12 x 6 mm center stone, ready to frame your chosen gem with quiet elegance.

Crafted in Williamsburg, the band’s gentle curve and polished finish balance presence with comfort, designed for daily wear without catching or crowding. The semi-set style invites your personal choice of a marquise diamond, allowing a custom journey from studio to finger.

Each piece reflects a commitment to sustainability through lab-grown diamonds, offering clarity and brilliance with a lighter environmental footprint. The low-profile setting ensures the ring sits close to the hand, ideal for those who appreciate subtlety alongside statement.

Its slender shank complements elongated finger shapes and layers gracefully with other bands, making it a versatile companion for stacking or solo wear. Resizing is handled thoughtfully in-studio, ensuring a seamless fit without compromising the ring’s refined lines.

Visit our Williamsburg studio to explore this semi-set marquise engagement ring or begin your custom design online—where craftsmanship meets your vision in Brooklyn’s creative heart.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a local, personalized approach to custom design.

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.