Lab-Grown Diamond Engagement Ring

Sunlight catches the three round diamonds, each poised to catch a story in its facets. This semi-set engagement ring foundation invites your choice of a 7 mm center stone, framed by two smaller companions that balance brilliance with quiet strength.

Crafted in cool platinum, the band offers a subtle heft and a smooth comfort fit, shaped to sit low against the finger for everyday wear. The three-stone setting is meticulously hand-finished in our Williamsburg studio, where each prong is polished to a refined edge, ensuring security without bulk.

Choosing a lab-grown diamond here means embracing clarity and sustainability—each gem grown with precision and a lighter environmental footprint. The round cut’s classic sparkle complements a wide range of hand shapes, while the low-profile setting pairs effortlessly with wedding bands or stackable rings.

Should you need resizing, our in-house artisans adjust the band with care, preserving the integrity of the setting. Typical lead times reflect our commitment to bespoke craftsmanship rather than mass production.

Visit us in Williamsburg to explore this semi-set ring in person or begin your custom design journey online—where expert guidance meets thoughtful creation.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending ethical craftsmanship with local artisan expertise in New York City.

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.