Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender beam that seems to stretch beyond the hand. This semi-set engagement ring foundation in warm 18K rose gold invites your choice of a 10 x 5 mm marquise center, its pointed ends echoing a quiet drama and refined elegance.

Crafted with a delicate yet secure solitaire setting, the band’s gentle curve is polished to a soft glow, designed for everyday wear with a low-profile comfort fit that slips easily beneath gloves or alongside stackable bands. Each piece is meticulously finished in our Williamsburg studio, where precision meets subtle artistry in every prong and contour.

Our diamonds are lab-grown, offering clarity and brilliance with a significantly lighter environmental footprint, reflecting a modern approach to ethical jewelry.

This ring suits those drawn to a distinctive shape that elongates the finger, balancing bold geometry with romantic grace. The semi-set design allows you to select a marquise stone that resonates personally, ensuring a truly bespoke expression.

Should you need resizing or prefer a custom consultation, our Brooklyn studio welcomes you to explore options with no pressure and full transparency.

Discover the possibilities of custom design in Brooklyn by visiting us in Williamsburg or starting your journey online. Haejin Jewelry blends expert craftsmanship, ethical clarity, and local authenticity to create lab-grown diamond engagement rings that speak to your story.

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.