Lab-Grown Diamond Engagement Ring

Light catches the elongated silhouette of the marquise diamond, its pointed ends drawing the eye along a graceful arc. This three-stone semi-set engagement ring in 10K white gold offers a refined stage for a 9 x 4.5 mm center stone, ready to be chosen and set with care.

Crafted with a low-profile setting, the band’s gentle curve and smooth finish ensure comfort for everyday wear. Each prong is meticulously shaped to cradle the marquise securely while allowing maximum light to animate the stone’s signature brilliance. The white gold shank is polished to a soft sheen, balancing subtlety with enduring strength.

Our commitment to sustainability is reflected in the lab-grown diamond option, providing clarity and sparkle with a lighter environmental footprint.

Designed for those who appreciate elegant geometry and delicate drama, this ring complements slender fingers and pairs effortlessly with stacking bands or a wedding band. Its low profile makes it glove-friendly and unobtrusive for daily life.

Should you need a custom fit, resizing is available to ensure the ring feels as natural as it looks.

Explore this semi-set marquise engagement ring in our Williamsburg studio or begin your custom design journey online—where thoughtful craftsmanship meets personal expression.

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 creative 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.