Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along the finger with quiet drama. This three-stone semi-set ring features a 10 x 5 mm marquise center, poised to be paired with your choice of side stones for a personalized narrative.

Crafted from warm 10K yellow gold, the band is shaped in our Williamsburg studio with a subtle comfort fit that rests gently against the skin. The low-profile setting balances presence with everyday wearability, while hand-polished finishes reveal the metal’s soft glow under natural light.

Each lab-grown diamond offers clarity and brilliance without compromise, reflecting a commitment to ethical jewelry that respects both people and planet. The marquise cut’s elongated form flatters slender fingers and lends itself beautifully to stacking or pairing with a wedding band.

Should you need resizing or wish to explore side stone options, our Brooklyn atelier welcomes your questions with thoughtful guidance and no pressure. Lead times vary slightly depending on customization but are communicated clearly from the start.

Visit us in Williamsburg or begin your custom design journey online—where craftsmanship meets intention in every detail.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a local, artisanal spirit.

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.