Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it traces a delicate arc that feels both intimate and bold. This semi-set halo engagement ring frames a 10 x 5 mm marquise stone, its pointed ends softened by a circle of smaller diamonds that amplify brilliance without overwhelming.

Crafted in 18K white gold, the band offers a cool, luminous backdrop that complements the stone’s fiery sparkle. The low-profile halo setting balances presence with everyday wearability, while the smooth finish and subtle taper ensure comfort beneath gloves or alongside a wedding band.

Each piece is meticulously hand-finished in our Williamsburg studio, where precision meets quiet artistry. The semi-set design invites your choice of a lab-grown diamond, reflecting our commitment to ethical jewelry that honors both beauty and sustainability.

Ideal for those who appreciate a blend of vintage-inspired romance and modern refinement, this ring suits slender fingers and elongates the hand with its architectural shape. Its versatile silhouette layers gracefully with stackable bands or stands alone as a statement of enduring affection.

Should you need resizing or guidance on selecting the perfect center stone, our Brooklyn studio offers personalized consultations to ensure a seamless experience.

Explore this design in person or begin your custom journey online—each ring is a quiet celebration of craftsmanship and care.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship and local expertise shape every creation.

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.