Lab-Grown Diamond Engagement Ring

When light catches the elongated curve of a marquise diamond, it traces a delicate silhouette that feels both intimate and striking. This semi-set engagement ring offers a refined foundation for a 10 x 5 mm marquise center, its pointed ends drawing the eye along the finger’s natural line.

Crafted in warm 14K rose gold, the band’s subtle glow complements the diamond’s fiery facets, while the low-profile solitaire setting ensures everyday comfort and ease of wear. Each curve is hand-finished in our Williamsburg studio, polished to a soft sheen that invites touch without excess flash.

The lab-grown diamond at the heart of this design reflects a commitment to ethical sourcing and sustainability, offering clarity and brilliance without compromise. Its elongated shape lends a graceful, vintage-inspired drama that suits slender or average-sized hands, especially those who appreciate a ring that balances statement with subtlety.

Designed to pair effortlessly with wedding bands or stackable rings, this mounting welcomes personalization and adapts to your lifestyle, whether worn solo or layered. Resizing is available to ensure a precise fit, crafted with care in Brooklyn.

Explore this semi-set marquise solitaire in our Williamsburg studio or begin your custom design journey online, where expert guidance meets thoughtful craftsmanship.

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 made for daily life and lasting connection.

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.