Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it traces a delicate arc that seems to stretch the hand with quiet elegance. This semi-set solitaire ring invites you to select your own 9 x 4.5 mm marquise center, a shape known for its tapered drama and graceful elongation.

Crafted in warm 10K rose gold, the band offers a subtle blush that complements the stone’s brilliance, while the low-profile setting ensures daily wearability without catching. Each ring is hand-finished in our Williamsburg studio, polished to a smooth comfort fit that feels like a second skin.

Our diamonds are lab-grown, reflecting a commitment to ethical jewelry that reduces environmental impact without compromising clarity or fire.

The slender band suits those who appreciate refined understatement, pairing effortlessly with wedding bands or stacking rings. Its modest height makes it glove-friendly and ideal for an active lifestyle.

Should you need resizing, our in-studio experts ensure a precise fit with minimal turnaround time.

Explore this semi-set marquise solitaire in person at our Williamsburg studio or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to crafting lab-grown diamond engagement rings with thoughtful design, ethical sourcing, and artisanal skill rooted in New York City’s creative heart.

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.