Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it draws the eye along a graceful arc—an elegant statement of refined confidence. This semi-set engagement ring foundation in 14K white gold offers a sleek, modern-minimal frame designed to highlight a 6 x 3.5 mm marquise center stone of your choosing.

Crafted in Williamsburg, the band’s clean lines and subtle accents balance clarity with structure, while a low-profile setting ensures everyday comfort and ease beneath gloves or alongside stackable bands. Each piece is meticulously finished by hand, polished to a soft sheen, and inspected for precision before it leaves the studio.

Our commitment to lab-grown diamonds means your ring carries a clear ethical edge—sustainably sourced with the same brilliance and durability as mined stones, but with a lighter environmental footprint.

This design suits those who appreciate architectural elegance with a contemporary twist, especially flattering on slender fingers where the marquise shape elongates the hand. The semi-set style invites you to select a center stone that reflects your unique story.

Resizing is straightforward, handled expertly in-studio to maintain the ring’s clean profile and comfort fit.

Explore this foundation in person at our Williamsburg studio or begin your custom design journey online—where expert guidance meets thoughtful craftsmanship.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings. Our expertise blends ethical craftsmanship with local artistry, creating pieces that resonate with New York City’s modern spirit.

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.