Lab-Grown Diamond Engagement Ring

When sunlight catches the elongated facets of a 12 x 6 mm marquise diamond, it casts a slender, luminous silhouette that feels both bold and graceful. This semi-set halo engagement ring foundation in 14K white gold offers a low-profile design, ensuring the center stone sits close to the finger for everyday comfort and secure wear.

Crafted with precision in Williamsburg, Brooklyn, the band’s smooth finish and subtle halo setting enhance the marquise’s tapered drama without adding bulk. The mounting’s streamlined shape pairs well with slender or average finger sizes, and its modest height makes it glove-friendly and stackable alongside wedding bands.

Each ring foundation is designed to accommodate your chosen lab-grown diamond, reflecting a commitment to ethical jewelry that reduces environmental impact without compromising brilliance or clarity.

Resizing is straightforward, handled in-studio with care to maintain the ring’s structural integrity and finish. Typical lead times allow for thoughtful customization and inspection before delivery.

Explore this semi-set halo in our Williamsburg studio or begin your custom design journey online—where expert guidance meets Brooklyn craftsmanship.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a local, personalized design experience.

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.