Lab-Grown Diamond Engagement Ring

Imagine the subtle drama of a marquise diamond catching light as it elongates the finger, framed by a delicate halo that amplifies its tapered brilliance. This semi-set engagement ring foundation invites your choice of a 12 x 6 mm marquise center, poised to become a signature piece.

Crafted from 18K white gold, the band is shaped with a refined comfort fit and a low-profile setting that balances presence with everyday ease. Each curve and prong is meticulously finished in our Williamsburg studio, where artisan hands ensure the metal’s cool glow complements the diamond’s fiery facets without overwhelming.

Our commitment to lab-grown diamonds means your ring carries a clarity and sparkle born from sustainable innovation, reflecting a modern approach to ethical jewelry.

The slender halo setting suits those who appreciate a blend of vintage-inspired detail and contemporary wearability, especially flattering on slender hands or those seeking a stackable silhouette. Its modest height slips easily beneath gloves or sleeves, making it a practical choice for daily life.

Should you need resizing, our in-house experts handle adjustments with care, preserving the ring’s structural integrity and finish.

Visit our Williamsburg studio to explore this semi-set halo or begin your custom design journey online—where craftsmanship meets personal expression.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing in the heart of 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.