Lab-Grown Diamond Engagement Ring

Soft light spills across a gently rounded cushion diamond, its broad facets catching the eye with a quiet, vintage-inspired glow. This semi-set engagement ring foundation in 18K white gold awaits your choice of a 12 x 12 mm center stone, designed to showcase the cushion’s signature warmth and subtle sparkle.

Crafted with a low-profile solitaire setting, the band’s smooth finish and delicate prongs cradle the diamond securely while maintaining a refined silhouette. The comfort fit shank ensures ease of wear for daily life, while the polished white gold offers a cool contrast that enhances the stone’s gentle fire.

Each piece reflects our commitment to ethical jewelry, featuring lab-grown diamonds that embody clarity and sustainability without compromise. This ring’s understated elegance suits those who appreciate a balance of classic romance and modern craftsmanship.

Its modest height and slender band make it ideal for stacking or pairing with a wedding band, while the generous cushion shape adds a soft architectural presence on the hand. Resizing is available to ensure a perfect fit, crafted with care in our Williamsburg studio.

Explore this semi-set foundation in person or begin your custom design journey online—where Brooklyn’s artisanal spirit meets thoughtful, ethical luxury.

Haejin Jewelry is a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with sustainable practices to create pieces made for a lifetime.

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.