Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, dramatic silhouette that draws the eye along the finger’s natural line. This semi-set three-stone engagement ring invites you to select a centerpiece that balances bold geometry with refined elegance.

Handcrafted in 18K yellow gold, the band’s smooth, gently rounded profile offers a comfortable fit for everyday wear. The three-stone setting is meticulously forged in our Williamsburg studio, where each prong is shaped and polished to cradle your chosen marquise securely while allowing maximum light to animate the stone’s facets.

Our commitment to lab-grown diamonds ensures clarity and brilliance with a lighter environmental footprint, reflecting a modern approach to ethical jewelry. The low-profile design keeps the ring glove-friendly and stackable, ideal for those who appreciate subtle sophistication alongside statement form.

Because this is a semi-set, you have the freedom to select a marquise diamond that speaks to your personal vision, with guidance from our Brooklyn artisans. Resizing is available to ensure a seamless fit, crafted with the same care as the original design.

Visit our Williamsburg studio to explore this three-stone marquise setting in person 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, hands-on design experience.

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.