Lab-Grown Diamond Engagement Ring

When light catches the elongated points of this marquise shape, it traces a delicate silhouette that seems to dance on the skin. The 8 x 4 mm center stone, poised for your choice, offers a striking balance of drama and refinement, its tapered form flattering the hand with subtle elongation.

Crafted in cool, enduring platinum, this semi-set solitaire mounting is designed with a low-profile setting that nestles close to the finger, ensuring daily comfort without sacrificing presence. The polished finish and precise prong work reflect careful hand inspection, a hallmark of our Brooklyn studio’s commitment to craftsmanship.

Each lab-grown diamond option embodies clarity and sustainability, aligning with a modern ethos that honors both beauty and responsibility. The solitaire silhouette suits those who appreciate minimalist elegance, while the narrow band allows effortless stacking or solo wear, adapting seamlessly to varied lifestyles.

Should you need a custom fit, resizing is available to ensure the ring feels as natural as it looks. Lead times are communicated transparently, respecting your timeline without pressure.

Explore this semi-set marquise solitaire in our Williamsburg studio or begin your custom design journey online—where thoughtful collaboration meets expert care.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry atelier specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artistry to create pieces meant for everyday grace and lasting meaning.

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.