Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of an 8 x 4 mm marquise diamond, its tapered points drawing the eye along a graceful arc. This semi-set engagement ring foundation in 14K white gold offers a refined stage for your chosen center stone, framed by delicate accent settings that echo the marquise’s elegant drama.

Each band is meticulously crafted in our Williamsburg studio, where the cool luster of white gold is hand-finished to a smooth, comfort fit that rests lightly against the skin. The low-profile setting ensures everyday wearability without sacrificing the ring’s sculptural presence.

Our commitment to lab-grown diamonds means your ring begins with a stone of exceptional clarity and ethical provenance, reflecting a modern approach to sustainability.

Designed for those who appreciate architectural lines and subtle sparkle, this mounting suits slender fingers and pairs beautifully with stackable bands or a wedding ring of contrasting texture.

Should you need resizing, our in-house artisans provide careful adjustments to maintain the integrity of the setting and fit.

Explore this semi-set marquise ring in person at our Williamsburg studio or start your custom design journey online—crafted for a lifetime of moments.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical materials and a local, personalized design experience.

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.