Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of an 8 x 4 mm marquise diamond, its tapered points drawing the eye along a delicate arc. This semi-set halo ring foundation in 10K yellow gold awaits your choice of center stone, crafted with precision to cradle the marquise securely while amplifying its signature drama.

Hand-forged in our Williamsburg studio, the band’s smooth comfort fit balances a low-profile setting that slips easily beneath gloves or alongside stackable favorites. The halo setting, meticulously finished, enhances brilliance without overwhelming the finger’s natural lines.

Each piece reflects our commitment to ethical jewelry, featuring lab-grown diamonds that offer clarity and sparkle with a lighter environmental footprint.

Designed for those who appreciate architectural elegance with a warm, artisanal touch, this mounting suits slender to medium finger shapes and invites personal expression through your diamond selection.

Resizing is straightforward, handled in-house to ensure the ring maintains its refined silhouette and comfort.

Explore this semi-set halo ring in person at our Williamsburg workshop or begin your custom design journey online—where Brooklyn craftsmanship meets thoughtful, modern romance.

Haejin Jewelry stands as a Brooklyn 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 artisanal heritage.

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.