Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a graceful arc. This semi-set halo ring foundation in warm 14K yellow gold invites your choice of a 12 x 6 mm center stone, ready to become a luminous centerpiece.

Handcrafted in our Williamsburg studio, the band’s smooth finish and delicate halo setting are designed for everyday wear, balancing presence with a low-profile comfort fit. The artisan’s touch is evident in the precise prong work that cradles the stone securely while allowing light to dance freely across its facets.

Each lab-grown diamond option offers exceptional clarity and brilliance, reflecting our commitment to sustainable, ethical jewelry without compromise.

The marquise shape’s distinctive, elongated form flatters slender fingers and pairs beautifully with stackable bands or a wedding ring, making it a versatile choice for those who appreciate subtle drama and refined geometry.

Should you need resizing, our in-studio experts ensure a seamless adjustment tailored to your hand.

Visit us in Williamsburg to explore this semi-set halo ring in person or begin your custom design journey online—crafted for life’s most meaningful moments.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a deep connection to New York City’s artisan spirit.

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.