Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated marquise diamond, its tapered points drawing the eye along a delicate halo of pavé-set stones that shimmer like morning dew. This platinum engagement ring balances bold geometry with refined craftsmanship, the halo setting enhancing the center’s dramatic silhouette without adding bulk.

Hand-forged in our Williamsburg studio, the band is polished to a satiny finish that feels cool and smooth against the skin. The low-profile setting ensures everyday comfort, while the secure prongs cradle the 12 x 6 mm marquise stone with precision, allowing light to flood its facets for a lively sparkle.

Crafted from responsibly sourced platinum paired with a lab-grown diamond, this ring reflects a commitment to ethical jewelry that honors both beauty and sustainability.

Its slender band and elongated shape suit hands that appreciate architectural elegance, and the halo adds subtle volume—ideal for stacking or wearing solo with ease. The design’s balance of presence and wearability makes it a thoughtful choice for those seeking a statement piece that fits seamlessly into daily life.

Should you need resizing or prefer a custom consultation, our Brooklyn studio welcomes you to explore options with no pressure and full transparency.

Discover the art of lab-grown diamond engagement rings through a personal visit or design online with Haejin Jewelry, where expert craftsmanship meets Brooklyn’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.