Lab-Grown Diamond Engagement Ring

Imagine the gentle curve of a marquise diamond catching morning light, its elongated silhouette casting a subtle shadow along your finger. This three-stone semi-set engagement ring in 14K white gold frames a 10 x 5 mm marquise center with two delicate side stones, creating a quiet dialogue of brilliance and balance.

Crafted in Williamsburg, Brooklyn, the band’s smooth comfort fit and low-profile setting ensure it slips on easily and wears gracefully through daily moments. Each prong is hand-finished to cradle the stone securely while allowing light to dance freely across the facets, enhancing the marquise’s signature tapered drama.

Our commitment to ethical jewelry is reflected in the lab-grown diamond’s clarity and origin, offering a sustainable choice without compromise. The elongated shape naturally complements slender fingers and pairs beautifully with stackable bands or a wedding ring, making it versatile for everyday wear.

Should you wish to customize the fit, resizing is straightforward and handled with care by our in-studio artisans. Whether you prefer to visit us in Williamsburg or design your ring online, the process is thoughtful and pressure-free.

Haejin Jewelry is a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship meets ethical values in every piece created for life’s most intimate moments.

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.