Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a delicate halo that seems to float above the finger. This semi-set engagement ring foundation invites your choice of a 9 x 4.5 mm center stone, ready to be framed by a meticulously crafted halo of pavé diamonds.

Hand-forged in 18K white gold, the band is shaped with a subtle comfort fit that balances presence with everyday ease. The halo setting is designed low enough to slip beneath gloves or stack alongside wedding bands without catching, yet elevated enough to showcase the diamond’s signature brilliance. Each curve and prong is polished in-studio, ensuring a refined finish that reflects Brooklyn’s artisan spirit.

Our commitment to sustainability is reflected in the option for a lab-grown marquise diamond, offering clarity and fire with a reduced environmental footprint.

This ring suits those who appreciate architectural elegance paired with practical wearability—ideal for slender fingers or anyone drawn to the vintage-inspired drama of a marquise cut. The semi-set design allows you to select a center stone that perfectly matches your vision and lifestyle.

Resizing is straightforward, handled carefully in our Williamsburg workshop to maintain the integrity of the setting and band.

Explore this semi-set halo ring in person at our Brooklyn studio or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artisan expertise to create pieces made for daily life and lasting beauty.

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.

Finished for daily wear — a low-profile silhouette and polished edges help minimize snagging.