Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its pointed ends drawing the eye along a graceful arc. This semi-set three-stone ring foundation in 10K white gold awaits your choice of center stone, designed to frame a 6 x 3.5 mm marquise with precision and balance.

Handcrafted in our Williamsburg studio, the band features a low-profile setting that keeps the stones close to the finger for everyday comfort. Each prong is meticulously shaped and polished to secure the stones while allowing maximum light to pass through, enhancing brilliance without bulk.

Our commitment to ethical jewelry is reflected in the lab-grown diamond options that pair seamlessly with this mounting—offering clarity and sparkle with a smaller environmental footprint.

The slender white gold shank suits those who appreciate subtle elegance and versatility, ideal for stacking with wedding bands or wearing solo. Its refined silhouette complements slender to medium finger sizes, while the comfort fit ensures it sits naturally through daily wear.

Should you need resizing, our Brooklyn studio offers precise adjustments without compromising the ring’s integrity or finish.

Explore this semi-set marquise engagement ring in person at our Williamsburg workshop or begin your custom design journey online—crafted for your story, shaped by expert hands.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a distinctly local sensibility.

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.