Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, dramatic silhouette that gently elongates the finger. This semi-set halo engagement ring foundation in 14K yellow gold offers a refined balance between presence and practicality, designed to cradle a 12 x 6 mm marquise center stone with precision.

Crafted with a low-profile setting, the halo frame enhances brilliance while maintaining a comfortable fit that slips easily beneath gloves or daily wear. The band’s polished finish and secure prong arrangement ensure durability without bulk, ideal for an active lifestyle.

Each piece reflects a commitment to sustainability through the use of lab-grown diamonds, marrying ethical clarity with Brooklyn’s artisanal standards. The warm yellow gold complements the marquise’s vintage-inspired shape, while the halo setting adds a modern edge.

Its slender silhouette suits hands seeking elegance without excess, and the semi-set design invites you to select a center stone that resonates personally. Resizing is straightforward, handled in-studio with care to preserve the ring’s integrity.

Explore this foundation in our Williamsburg studio or begin your custom design journey online—where craftsmanship meets conscious luxury.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio devoted to expert lab-grown diamond engagement rings, blending ethical craftsmanship with local artistry in New York City.

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.