Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it creates a striking play of brilliance and shadow that draws the eye along the finger’s natural line. This semi-set solitaire ring offers a poised foundation for an 8 x 4 mm marquise center stone, designed with a slender 14K white gold band that balances delicacy with durability.

Crafted in our Williamsburg studio, the band is hand-finished to a smooth comfort fit, ensuring it rests lightly against the skin without catching. The low-profile prong setting secures the stone while maintaining an elegant, unobtrusive profile ideal for daily wear. Each piece undergoes meticulous inspection to meet exacting standards of polish and symmetry.

Our commitment to sustainability is reflected in the use of lab-grown diamonds, which offer the same optical properties as mined stones with a significantly reduced environmental footprint.

This ring suits those who appreciate refined geometry and a subtle statement—its narrow band complements slender to medium finger sizes and layers effortlessly with wedding bands or stackable rings. The semi-set design invites you to select a marquise diamond that resonates personally, making the ring uniquely yours.

Should you need resizing or prefer a different finish, our Brooklyn studio offers personalized consultations to tailor the fit and style to your lifestyle.

Explore this semi-set marquise solitaire in person at our Williamsburg workshop or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to crafting lab-grown diamond engagement rings with precise artisan skill and ethical clarity, blending modern design with local authenticity.

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.