Lab-Grown Diamond Engagement Ring

When light catches the elongated curve of a marquise diamond, it traces a slender beam across the skin—an intimate flicker that feels both bold and delicate. This semi-set engagement ring invites you to choose a 6 x 3 mm marquise stone, its pointed silhouette lending a graceful drama that elongates the finger with subtle elegance.

Crafted from warm 18K rose gold, the slender band is polished to a soft glow, its low-profile setting designed for everyday wear without catching or discomfort. The rose gold’s gentle blush complements the marquise’s fiery facets, while the secure prong structure ensures your chosen gem sits poised and protected.

Each ring is finished by hand in our Williamsburg studio, where precision meets quiet artistry. The semi-set design offers a thoughtful pause for personal selection, allowing the center stone to reflect your unique story.

Our commitment to sustainability is reflected in the use of lab-grown diamonds, offering clarity and brilliance with a lighter environmental footprint.

This ring suits those who appreciate refined statement pieces that balance romance with practicality—its slender band fits comfortably beneath gloves and layers seamlessly with other bands for a personalized stack.

Should you need resizing or guidance on stone selection, our Brooklyn studio team is ready to assist with care and expertise.

Discover the possibilities in person or begin your custom design journey online, where every detail is crafted for a lifetime of meaning.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending ethical craftsmanship with local artistry to create pieces that resonate beyond the moment.

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.